Home / 377,882.28-520,869.76-255,336.40

Finding the Fourth Proportional to 377,882.28, 520,869.76 and 255,336.40

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Solution

The fourth proportional to 377,882.28, 520,869.76 and 255,336.40 is: 351,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,882.28 : 520,869.76 = 255,336.40 : x
  2. Step 2: Convert to fraction form
    377,882.28/520,869.76 = 255,336.40/x
  3. Step 3: Cross multiply
    377,882.28x = 520,869.76 × 255,336.40
  4. Step 4: Simplify right side
    377,882.28x = 132,997,009,400.01
  5. Step 5: Solve for x
    x = 132,997,009,400.01/377,882.28
  6. Step 6: Final answer
    x = 351,953.55

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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.