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Finding the Fourth Proportional to 510,069.12, 765,146.51 and 155,086.22

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Solution

The fourth proportional to 510,069.12, 765,146.51 and 155,086.22 is: 232,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,069.12 : 765,146.51 = 155,086.22 : x
  2. Step 2: Convert to fraction form
    510,069.12/765,146.51 = 155,086.22/x
  3. Step 3: Cross multiply
    510,069.12x = 765,146.51 × 155,086.22
  4. Step 4: Simplify right side
    510,069.12x = 118,663,678,269.51
  5. Step 5: Solve for x
    x = 118,663,678,269.51/510,069.12
  6. Step 6: Final answer
    x = 232,642.35

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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.