Home / 283,731.50-391,552.10-156,411.65

Finding the Fourth Proportional to 283,731.50, 391,552.10 and 156,411.65

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Solution

The fourth proportional to 283,731.50, 391,552.10 and 156,411.65 is: 215,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,731.50 : 391,552.10 = 156,411.65 : x
  2. Step 2: Convert to fraction form
    283,731.50/391,552.10 = 156,411.65/x
  3. Step 3: Cross multiply
    283,731.50x = 391,552.10 × 156,411.65
  4. Step 4: Simplify right side
    283,731.50x = 61,243,307,282.15
  5. Step 5: Solve for x
    x = 61,243,307,282.15/283,731.50
  6. Step 6: Final answer
    x = 215,849.52

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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.