Home / 384,852.08-531,096.64-215,086.20

Finding the Fourth Proportional to 384,852.08, 531,096.64 and 215,086.20

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Solution

The fourth proportional to 384,852.08, 531,096.64 and 215,086.20 is: 296,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,852.08 : 531,096.64 = 215,086.20 : x
  2. Step 2: Convert to fraction form
    384,852.08/531,096.64 = 215,086.20/x
  3. Step 3: Cross multiply
    384,852.08x = 531,096.64 × 215,086.20
  4. Step 4: Simplify right side
    384,852.08x = 114,231,558,130.37
  5. Step 5: Solve for x
    x = 114,231,558,130.37/384,852.08
  6. Step 6: Final answer
    x = 296,819.39

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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.