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Finding the Fourth Proportional to 383,432.47, 575,127.78 and 117,192.89

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Solution

The fourth proportional to 383,432.47, 575,127.78 and 117,192.89 is: 175,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,432.47 : 575,127.78 = 117,192.89 : x
  2. Step 2: Convert to fraction form
    383,432.47/575,127.78 = 117,192.89/x
  3. Step 3: Cross multiply
    383,432.47x = 575,127.78 × 117,192.89
  4. Step 4: Simplify right side
    383,432.47x = 67,400,887,655.83
  5. Step 5: Solve for x
    x = 67,400,887,655.83/383,432.47
  6. Step 6: Final answer
    x = 175,782.94

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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.