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Finding the Fourth Proportional to 510,587.95, 765,910.73 and 155,613.55

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Solution

The fourth proportional to 510,587.95, 765,910.73 and 155,613.55 is: 233,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,587.95 : 765,910.73 = 155,613.55 : x
  2. Step 2: Convert to fraction form
    510,587.95/765,910.73 = 155,613.55/x
  3. Step 3: Cross multiply
    510,587.95x = 765,910.73 × 155,613.55
  4. Step 4: Simplify right side
    510,587.95x = 119,186,087,678.39
  5. Step 5: Solve for x
    x = 119,186,087,678.39/510,587.95
  6. Step 6: Final answer
    x = 233,429.10

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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.