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Finding the Fourth Proportional to 508,722.68, 763,100.31 and 255,865.16

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Solution

The fourth proportional to 508,722.68, 763,100.31 and 255,865.16 is: 383,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,722.68 : 763,100.31 = 255,865.16 : x
  2. Step 2: Convert to fraction form
    508,722.68/763,100.31 = 255,865.16/x
  3. Step 3: Cross multiply
    508,722.68x = 763,100.31 × 255,865.16
  4. Step 4: Simplify right side
    508,722.68x = 195,250,782,914.20
  5. Step 5: Solve for x
    x = 195,250,782,914.20/508,722.68
  6. Step 6: Final answer
    x = 383,805.93

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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.