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Finding the Fourth Proportional to 432,068.85, 648,103.28 and 132,547.05

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Solution

The fourth proportional to 432,068.85, 648,103.28 and 132,547.05 is: 198,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,068.85 : 648,103.28 = 132,547.05 : x
  2. Step 2: Convert to fraction form
    432,068.85/648,103.28 = 132,547.05/x
  3. Step 3: Cross multiply
    432,068.85x = 648,103.28 × 132,547.05
  4. Step 4: Simplify right side
    432,068.85x = 85,904,177,196.59
  5. Step 5: Solve for x
    x = 85,904,177,196.59/432,068.85
  6. Step 6: Final answer
    x = 198,820.58

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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.