Home / 256,220,365.02-384,169,048.50-217,372,421.58

Finding the Fourth Proportional to 256,220,365.02, 384,169,048.50 and 217,372,421.58

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Solution

The fourth proportional to 256,220,365.02, 384,169,048.50 and 217,372,421.58 is: 325,921,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,220,365.02 : 384,169,048.50 = 217,372,421.58 : x
  2. Step 2: Convert to fraction form
    256,220,365.02/384,169,048.50 = 217,372,421.58/x
  3. Step 3: Cross multiply
    256,220,365.02x = 384,169,048.50 × 217,372,421.58
  4. Step 4: Simplify right side
    256,220,365.02x = 83,507,756,368,529,472
  5. Step 5: Solve for x
    x = 83,507,756,368,529,472/256,220,365.02
  6. Step 6: Final answer
    x = 325,921,619.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.