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Finding the Fourth Proportional to 377,650.80, 566,476.20 and 128,332.80

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Solution

The fourth proportional to 377,650.80, 566,476.20 and 128,332.80 is: 192,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,650.80 : 566,476.20 = 128,332.80 : x
  2. Step 2: Convert to fraction form
    377,650.80/566,476.20 = 128,332.80/x
  3. Step 3: Cross multiply
    377,650.80x = 566,476.20 × 128,332.80
  4. Step 4: Simplify right side
    377,650.80x = 72,697,476,879.36
  5. Step 5: Solve for x
    x = 72,697,476,879.36/377,650.80
  6. Step 6: Final answer
    x = 192,499.20

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1.5x scale

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.