Home / 443,015.12-664,532.04-158,724.20

Finding the Fourth Proportional to 443,015.12, 664,532.04 and 158,724.20

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Solution

The fourth proportional to 443,015.12, 664,532.04 and 158,724.20 is: 238,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,015.12 : 664,532.04 = 158,724.20 : x
  2. Step 2: Convert to fraction form
    443,015.12/664,532.04 = 158,724.20/x
  3. Step 3: Cross multiply
    443,015.12x = 664,532.04 × 158,724.20
  4. Step 4: Simplify right side
    443,015.12x = 105,477,316,423.37
  5. Step 5: Solve for x
    x = 105,477,316,423.37/443,015.12
  6. Step 6: Final answer
    x = 238,089.65

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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.