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Finding the Fourth Proportional to 283,389.60, 391,089.68 and 162,564.96

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Solution

The fourth proportional to 283,389.60, 391,089.68 and 162,564.96 is: 224,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,389.60 : 391,089.68 = 162,564.96 : x
  2. Step 2: Convert to fraction form
    283,389.60/391,089.68 = 162,564.96/x
  3. Step 3: Cross multiply
    283,389.60x = 391,089.68 × 162,564.96
  4. Step 4: Simplify right side
    283,389.60x = 63,577,478,185.61
  5. Step 5: Solve for x
    x = 63,577,478,185.61/283,389.60
  6. Step 6: Final answer
    x = 224,346.55

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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.