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Finding the Fourth Proportional to 387,247.95, 581,100.35 and 162,647.91

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Solution

The fourth proportional to 387,247.95, 581,100.35 and 162,647.91 is: 244,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,247.95 : 581,100.35 = 162,647.91 : x
  2. Step 2: Convert to fraction form
    387,247.95/581,100.35 = 162,647.91/x
  3. Step 3: Cross multiply
    387,247.95x = 581,100.35 × 162,647.91
  4. Step 4: Simplify right side
    387,247.95x = 94,514,756,614.53
  5. Step 5: Solve for x
    x = 94,514,756,614.53/387,247.95
  6. Step 6: Final answer
    x = 244,067.80

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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.