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Finding the Fourth Proportional to 377,121.60, 520,429.68 and 207,366.60

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Solution

The fourth proportional to 377,121.60, 520,429.68 and 207,366.60 is: 286,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,121.60 : 520,429.68 = 207,366.60 : x
  2. Step 2: Convert to fraction form
    377,121.60/520,429.68 = 207,366.60/x
  3. Step 3: Cross multiply
    377,121.60x = 520,429.68 × 207,366.60
  4. Step 4: Simplify right side
    377,121.60x = 107,919,733,280.69
  5. Step 5: Solve for x
    x = 107,919,733,280.69/377,121.60
  6. Step 6: Final answer
    x = 286,166.94

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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.