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Finding the Fourth Proportional to 377,155.59, 520,474.71 and 207,389.71

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Solution

The fourth proportional to 377,155.59, 520,474.71 and 207,389.71 is: 286,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,155.59 : 520,474.71 = 207,389.71 : x
  2. Step 2: Convert to fraction form
    377,155.59/520,474.71 = 207,389.71/x
  3. Step 3: Cross multiply
    377,155.59x = 520,474.71 × 207,389.71
  4. Step 4: Simplify right side
    377,155.59x = 107,941,100,597.54
  5. Step 5: Solve for x
    x = 107,941,100,597.54/377,155.59
  6. Step 6: Final answer
    x = 286,197.80

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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.