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Finding the Fourth Proportional to 488,085.40, 731,909.40 and 188,466.40

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Solution

The fourth proportional to 488,085.40, 731,909.40 and 188,466.40 is: 282,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,085.40 : 731,909.40 = 188,466.40 : x
  2. Step 2: Convert to fraction form
    488,085.40/731,909.40 = 188,466.40/x
  3. Step 3: Cross multiply
    488,085.40x = 731,909.40 × 188,466.40
  4. Step 4: Simplify right side
    488,085.40x = 137,940,329,744.16
  5. Step 5: Solve for x
    x = 137,940,329,744.16/488,085.40
  6. Step 6: Final answer
    x = 282,615.15

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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.