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Finding the Fourth Proportional to 253,983.68, 380,938.08 and 67,008.32

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Solution

The fourth proportional to 253,983.68, 380,938.08 and 67,008.32 is: 100,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,983.68 : 380,938.08 = 67,008.32 : x
  2. Step 2: Convert to fraction form
    253,983.68/380,938.08 = 67,008.32/x
  3. Step 3: Cross multiply
    253,983.68x = 380,938.08 × 67,008.32
  4. Step 4: Simplify right side
    253,983.68x = 25,526,020,764.83
  5. Step 5: Solve for x
    x = 25,526,020,764.83/253,983.68
  6. Step 6: Final answer
    x = 100,502.60

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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.