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Finding the Fourth Proportional to 161,587.60, 242,575.80 and 160,421.20

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Solution

The fourth proportional to 161,587.60, 242,575.80 and 160,421.20 is: 240,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,587.60 : 242,575.80 = 160,421.20 : x
  2. Step 2: Convert to fraction form
    161,587.60/242,575.80 = 160,421.20/x
  3. Step 3: Cross multiply
    161,587.60x = 242,575.80 × 160,421.20
  4. Step 4: Simplify right side
    161,587.60x = 38,914,300,926.96
  5. Step 5: Solve for x
    x = 38,914,300,926.96/161,587.60
  6. Step 6: Final answer
    x = 240,824.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.