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Finding the Fourth Proportional to 377,291.69, 520,490.79 and 224,242.91

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Solution

The fourth proportional to 377,291.69, 520,490.79 and 224,242.91 is: 309,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,291.69 : 520,490.79 = 224,242.91 : x
  2. Step 2: Convert to fraction form
    377,291.69/520,490.79 = 224,242.91/x
  3. Step 3: Cross multiply
    377,291.69x = 520,490.79 × 224,242.91
  4. Step 4: Simplify right side
    377,291.69x = 116,716,369,926.35
  5. Step 5: Solve for x
    x = 116,716,369,926.35/377,291.69
  6. Step 6: Final answer
    x = 309,353.14

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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.