Home / 488,079.90-731,948.31-146,421.45

Finding the Fourth Proportional to 488,079.90, 731,948.31 and 146,421.45

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Solution

The fourth proportional to 488,079.90, 731,948.31 and 146,421.45 is: 219,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,079.90 : 731,948.31 = 146,421.45 : x
  2. Step 2: Convert to fraction form
    488,079.90/731,948.31 = 146,421.45/x
  3. Step 3: Cross multiply
    488,079.90x = 731,948.31 × 146,421.45
  4. Step 4: Simplify right side
    488,079.90x = 107,172,932,875.25
  5. Step 5: Solve for x
    x = 107,172,932,875.25/488,079.90
  6. Step 6: Final answer
    x = 219,580.71

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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.