Home / 215,428.92-297,248.40-130,496.64

Finding the Fourth Proportional to 215,428.92, 297,248.40 and 130,496.64

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Solution

The fourth proportional to 215,428.92, 297,248.40 and 130,496.64 is: 180,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,428.92 : 297,248.40 = 130,496.64 : x
  2. Step 2: Convert to fraction form
    215,428.92/297,248.40 = 130,496.64/x
  3. Step 3: Cross multiply
    215,428.92x = 297,248.40 × 130,496.64
  4. Step 4: Simplify right side
    215,428.92x = 38,789,917,445.38
  5. Step 5: Solve for x
    x = 38,789,917,445.38/215,428.92
  6. Step 6: Final answer
    x = 180,059.01

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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.