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Finding the Fourth Proportional to 510,311.52, 765,498.72 and 155,352

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Solution

The fourth proportional to 510,311.52, 765,498.72 and 155,352 is: 233,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,311.52 : 765,498.72 = 155,352 : x
  2. Step 2: Convert to fraction form
    510,311.52/765,498.72 = 155,352/x
  3. Step 3: Cross multiply
    510,311.52x = 765,498.72 × 155,352
  4. Step 4: Simplify right side
    510,311.52x = 118,921,757,149.44
  5. Step 5: Solve for x
    x = 118,921,757,149.44/510,311.52
  6. Step 6: Final answer
    x = 233,037.57

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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.