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Finding the Fourth Proportional to 519,373.88, 779,177.52 and 164,409.20

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Solution

The fourth proportional to 519,373.88, 779,177.52 and 164,409.20 is: 246,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,373.88 : 779,177.52 = 164,409.20 : x
  2. Step 2: Convert to fraction form
    519,373.88/779,177.52 = 164,409.20/x
  3. Step 3: Cross multiply
    519,373.88x = 779,177.52 × 164,409.20
  4. Step 4: Simplify right side
    519,373.88x = 128,103,952,721.18
  5. Step 5: Solve for x
    x = 128,103,952,721.18/519,373.88
  6. Step 6: Final answer
    x = 246,650.74

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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.