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Finding the Fourth Proportional to 510,233.76, 765,460.80 and 155,275.56

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Solution

The fourth proportional to 510,233.76, 765,460.80 and 155,275.56 is: 232,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,233.76 : 765,460.80 = 155,275.56 : x
  2. Step 2: Convert to fraction form
    510,233.76/765,460.80 = 155,275.56/x
  3. Step 3: Cross multiply
    510,233.76x = 765,460.80 × 155,275.56
  4. Step 4: Simplify right side
    510,233.76x = 118,857,354,378.05
  5. Step 5: Solve for x
    x = 118,857,354,378.05/510,233.76
  6. Step 6: Final answer
    x = 232,946.86

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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.