Home / 221,012.02-304,986.06-125,505.76

Finding the Fourth Proportional to 221,012.02, 304,986.06 and 125,505.76

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Solution

The fourth proportional to 221,012.02, 304,986.06 and 125,505.76 is: 173,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,012.02 : 304,986.06 = 125,505.76 : x
  2. Step 2: Convert to fraction form
    221,012.02/304,986.06 = 125,505.76/x
  3. Step 3: Cross multiply
    221,012.02x = 304,986.06 × 125,505.76
  4. Step 4: Simplify right side
    221,012.02x = 38,277,507,249.71
  5. Step 5: Solve for x
    x = 38,277,507,249.71/221,012.02
  6. Step 6: Final answer
    x = 173,191.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.