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Finding the Fourth Proportional to 377,463, 566,281.98 and 128,145

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Solution

The fourth proportional to 377,463, 566,281.98 and 128,145 is: 192,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,463 : 566,281.98 = 128,145 : x
  2. Step 2: Convert to fraction form
    377,463/566,281.98 = 128,145/x
  3. Step 3: Cross multiply
    377,463x = 566,281.98 × 128,145
  4. Step 4: Simplify right side
    377,463x = 72,566,204,327.10
  5. Step 5: Solve for x
    x = 72,566,204,327.10/377,463
  6. Step 6: Final answer
    x = 192,247.20

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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.