Home / 283,565.95-391,320.27-156,241.53

Finding the Fourth Proportional to 283,565.95, 391,320.27 and 156,241.53

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Solution

The fourth proportional to 283,565.95, 391,320.27 and 156,241.53 is: 215,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,565.95 : 391,320.27 = 156,241.53 : x
  2. Step 2: Convert to fraction form
    283,565.95/391,320.27 = 156,241.53/x
  3. Step 3: Cross multiply
    283,565.95x = 391,320.27 × 156,241.53
  4. Step 4: Simplify right side
    283,565.95x = 61,140,477,704.81
  5. Step 5: Solve for x
    x = 61,140,477,704.81/283,565.95
  6. Step 6: Final answer
    x = 215,612.91

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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.