Home / 377,042.20-520,328.16-207,280.60

Finding the Fourth Proportional to 377,042.20, 520,328.16 and 207,280.60

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Solution

The fourth proportional to 377,042.20, 520,328.16 and 207,280.60 is: 286,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,042.20 : 520,328.16 = 207,280.60 : x
  2. Step 2: Convert to fraction form
    377,042.20/520,328.16 = 207,280.60/x
  3. Step 3: Cross multiply
    377,042.20x = 520,328.16 × 207,280.60
  4. Step 4: Simplify right side
    377,042.20x = 107,853,933,201.70
  5. Step 5: Solve for x
    x = 107,853,933,201.70/377,042.20
  6. Step 6: Final answer
    x = 286,052.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.