Home / 509,105.20-763,463.40-154,001.20

Finding the Fourth Proportional to 509,105.20, 763,463.40 and 154,001.20

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Solution

The fourth proportional to 509,105.20, 763,463.40 and 154,001.20 is: 230,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,105.20 : 763,463.40 = 154,001.20 : x
  2. Step 2: Convert to fraction form
    509,105.20/763,463.40 = 154,001.20/x
  3. Step 3: Cross multiply
    509,105.20x = 763,463.40 × 154,001.20
  4. Step 4: Simplify right side
    509,105.20x = 117,574,279,756.08
  5. Step 5: Solve for x
    x = 117,574,279,756.08/509,105.20
  6. Step 6: Final answer
    x = 230,943.00

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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.