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Finding the Fourth Proportional to 377,475, 566,299.98 and 128,157

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Solution

The fourth proportional to 377,475, 566,299.98 and 128,157 is: 192,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,475 : 566,299.98 = 128,157 : x
  2. Step 2: Convert to fraction form
    377,475/566,299.98 = 128,157/x
  3. Step 3: Cross multiply
    377,475x = 566,299.98 × 128,157
  4. Step 4: Simplify right side
    377,475x = 72,575,306,536.86
  5. Step 5: Solve for x
    x = 72,575,306,536.86/377,475
  6. Step 6: Final answer
    x = 192,265.20

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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.