Home / 443,176.64-664,747.52-147,688.64

Finding the Fourth Proportional to 443,176.64, 664,747.52 and 147,688.64

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Solution

The fourth proportional to 443,176.64, 664,747.52 and 147,688.64 is: 221,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,176.64 : 664,747.52 = 147,688.64 : x
  2. Step 2: Convert to fraction form
    443,176.64/664,747.52 = 147,688.64/x
  3. Step 3: Cross multiply
    443,176.64x = 664,747.52 × 147,688.64
  4. Step 4: Simplify right side
    443,176.64x = 98,175,657,172.17
  5. Step 5: Solve for x
    x = 98,175,657,172.17/443,176.64
  6. Step 6: Final answer
    x = 221,527.15

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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.