Home / 377,231.18-520,487.90-239,359.84

Finding the Fourth Proportional to 377,231.18, 520,487.90 and 239,359.84

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Solution

The fourth proportional to 377,231.18, 520,487.90 and 239,359.84 is: 330,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,231.18 : 520,487.90 = 239,359.84 : x
  2. Step 2: Convert to fraction form
    377,231.18/520,487.90 = 239,359.84/x
  3. Step 3: Cross multiply
    377,231.18x = 520,487.90 × 239,359.84
  4. Step 4: Simplify right side
    377,231.18x = 124,583,897,967.92
  5. Step 5: Solve for x
    x = 124,583,897,967.92/377,231.18
  6. Step 6: Final answer
    x = 330,258.75

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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.