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Finding the Fourth Proportional to 296,288.80, 444,502.40 and 85,930.72

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Solution

The fourth proportional to 296,288.80, 444,502.40 and 85,930.72 is: 128,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,288.80 : 444,502.40 = 85,930.72 : x
  2. Step 2: Convert to fraction form
    296,288.80/444,502.40 = 85,930.72/x
  3. Step 3: Cross multiply
    296,288.80x = 444,502.40 × 85,930.72
  4. Step 4: Simplify right side
    296,288.80x = 38,196,411,273.73
  5. Step 5: Solve for x
    x = 38,196,411,273.73/296,288.80
  6. Step 6: Final answer
    x = 128,916.15

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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.