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Finding the Fourth Proportional to 310,139.35, 464,990.11 and 120,441.71

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Solution

The fourth proportional to 310,139.35, 464,990.11 and 120,441.71 is: 180,577.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,139.35 : 464,990.11 = 120,441.71 : x
  2. Step 2: Convert to fraction form
    310,139.35/464,990.11 = 120,441.71/x
  3. Step 3: Cross multiply
    310,139.35x = 464,990.11 × 120,441.71
  4. Step 4: Simplify right side
    310,139.35x = 56,004,204,842.86
  5. Step 5: Solve for x
    x = 56,004,204,842.86/310,139.35
  6. Step 6: Final answer
    x = 180,577.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.