Home / 509,151.20-763,532.40-154,047.20

Finding the Fourth Proportional to 509,151.20, 763,532.40 and 154,047.20

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Solution

The fourth proportional to 509,151.20, 763,532.40 and 154,047.20 is: 231,011.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,151.20 : 763,532.40 = 154,047.20 : x
  2. Step 2: Convert to fraction form
    509,151.20/763,532.40 = 154,047.20/x
  3. Step 3: Cross multiply
    509,151.20x = 763,532.40 × 154,047.20
  4. Step 4: Simplify right side
    509,151.20x = 117,620,028,329.28
  5. Step 5: Solve for x
    x = 117,620,028,329.28/509,151.20
  6. Step 6: Final answer
    x = 231,011.98

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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.