Home / 283,728.03-391,545.54-156,400.89

Finding the Fourth Proportional to 283,728.03, 391,545.54 and 156,400.89

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Solution

The fourth proportional to 283,728.03, 391,545.54 and 156,400.89 is: 215,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,728.03 : 391,545.54 = 156,400.89 : x
  2. Step 2: Convert to fraction form
    283,728.03/391,545.54 = 156,400.89/x
  3. Step 3: Cross multiply
    283,728.03x = 391,545.54 × 156,400.89
  4. Step 4: Simplify right side
    283,728.03x = 61,238,070,931.53
  5. Step 5: Solve for x
    x = 61,238,070,931.53/283,728.03
  6. Step 6: Final answer
    x = 215,833.70

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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.