Home / 390,829.04-585,847.92-154,338.56

Finding the Fourth Proportional to 390,829.04, 585,847.92 and 154,338.56

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Solution

The fourth proportional to 390,829.04, 585,847.92 and 154,338.56 is: 231,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,829.04 : 585,847.92 = 154,338.56 : x
  2. Step 2: Convert to fraction form
    390,829.04/585,847.92 = 154,338.56/x
  3. Step 3: Cross multiply
    390,829.04x = 585,847.92 × 154,338.56
  4. Step 4: Simplify right side
    390,829.04x = 90,418,924,351.80
  5. Step 5: Solve for x
    x = 90,418,924,351.80/390,829.04
  6. Step 6: Final answer
    x = 231,351.60

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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.