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Finding the Fourth Proportional to 510,397.98, 765,433.70 and 168,777.95

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Solution

The fourth proportional to 510,397.98, 765,433.70 and 168,777.95 is: 253,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,397.98 : 765,433.70 = 168,777.95 : x
  2. Step 2: Convert to fraction form
    510,397.98/765,433.70 = 168,777.95/x
  3. Step 3: Cross multiply
    510,397.98x = 765,433.70 × 168,777.95
  4. Step 4: Simplify right side
    510,397.98x = 129,188,326,708.77
  5. Step 5: Solve for x
    x = 129,188,326,708.77/510,397.98
  6. Step 6: Final answer
    x = 253,112.93

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1.5x scale

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.