Home / 283,641.54-391,423.35-156,317.25

Finding the Fourth Proportional to 283,641.54, 391,423.35 and 156,317.25

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Solution

The fourth proportional to 283,641.54, 391,423.35 and 156,317.25 is: 215,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,641.54 : 391,423.35 = 156,317.25 : x
  2. Step 2: Convert to fraction form
    283,641.54/391,423.35 = 156,317.25/x
  3. Step 3: Cross multiply
    283,641.54x = 391,423.35 × 156,317.25
  4. Step 4: Simplify right side
    283,641.54x = 61,186,221,657.79
  5. Step 5: Solve for x
    x = 61,186,221,657.79/283,641.54
  6. Step 6: Final answer
    x = 215,716.72

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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.