Home / 460,126.20-690,212.70-144,586.20

Finding the Fourth Proportional to 460,126.20, 690,212.70 and 144,586.20

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Solution

The fourth proportional to 460,126.20, 690,212.70 and 144,586.20 is: 216,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,126.20 : 690,212.70 = 144,586.20 : x
  2. Step 2: Convert to fraction form
    460,126.20/690,212.70 = 144,586.20/x
  3. Step 3: Cross multiply
    460,126.20x = 690,212.70 × 144,586.20
  4. Step 4: Simplify right side
    460,126.20x = 99,795,231,484.74
  5. Step 5: Solve for x
    x = 99,795,231,484.74/460,126.20
  6. Step 6: Final answer
    x = 216,886.65

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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.