Home / 443,119.60-664,679.40-147,631.60

Finding the Fourth Proportional to 443,119.60, 664,679.40 and 147,631.60

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Solution

The fourth proportional to 443,119.60, 664,679.40 and 147,631.60 is: 221,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,119.60 : 664,679.40 = 147,631.60 : x
  2. Step 2: Convert to fraction form
    443,119.60/664,679.40 = 147,631.60/x
  3. Step 3: Cross multiply
    443,119.60x = 664,679.40 × 147,631.60
  4. Step 4: Simplify right side
    443,119.60x = 98,127,683,309.04
  5. Step 5: Solve for x
    x = 98,127,683,309.04/443,119.60
  6. Step 6: Final answer
    x = 221,447.40

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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.