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Finding the Fourth Proportional to 357,779.43, 493,553.66 and 272,748.87

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Solution

The fourth proportional to 357,779.43, 493,553.66 and 272,748.87 is: 376,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,779.43 : 493,553.66 = 272,748.87 : x
  2. Step 2: Convert to fraction form
    357,779.43/493,553.66 = 272,748.87/x
  3. Step 3: Cross multiply
    357,779.43x = 493,553.66 × 272,748.87
  4. Step 4: Simplify right side
    357,779.43x = 134,616,201,685.62
  5. Step 5: Solve for x
    x = 134,616,201,685.62/357,779.43
  6. Step 6: Final answer
    x = 376,254.73

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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.