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Finding the Fourth Proportional to 510,446.36, 765,784.78 and 168,888.98

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Solution

The fourth proportional to 510,446.36, 765,784.78 and 168,888.98 is: 253,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,446.36 : 765,784.78 = 168,888.98 : x
  2. Step 2: Convert to fraction form
    510,446.36/765,784.78 = 168,888.98/x
  3. Step 3: Cross multiply
    510,446.36x = 765,784.78 × 168,888.98
  4. Step 4: Simplify right side
    510,446.36x = 129,332,607,578.43
  5. Step 5: Solve for x
    x = 129,332,607,578.43/510,446.36
  6. Step 6: Final answer
    x = 253,371.59

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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.