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Finding the Fourth Proportional to 377,471, 566,293.98 and 128,153

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Solution

The fourth proportional to 377,471, 566,293.98 and 128,153 is: 192,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,471 : 566,293.98 = 128,153 : x
  2. Step 2: Convert to fraction form
    377,471/566,293.98 = 128,153/x
  3. Step 3: Cross multiply
    377,471x = 566,293.98 × 128,153
  4. Step 4: Simplify right side
    377,471x = 72,572,272,418.94
  5. Step 5: Solve for x
    x = 72,572,272,418.94/377,471
  6. Step 6: Final answer
    x = 192,259.20

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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.