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Finding the Fourth Proportional to 510,423.11, 765,471.39 and 168,803.07

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Solution

The fourth proportional to 510,423.11, 765,471.39 and 168,803.07 is: 253,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,423.11 : 765,471.39 = 168,803.07 : x
  2. Step 2: Convert to fraction form
    510,423.11/765,471.39 = 168,803.07/x
  3. Step 3: Cross multiply
    510,423.11x = 765,471.39 × 168,803.07
  4. Step 4: Simplify right side
    510,423.11x = 129,213,920,629.17
  5. Step 5: Solve for x
    x = 129,213,920,629.17/510,423.11
  6. Step 6: Final answer
    x = 253,150.61

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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.