Home / 215,048.90-322,496.55-74,812.10

Finding the Fourth Proportional to 215,048.90, 322,496.55 and 74,812.10

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Solution

The fourth proportional to 215,048.90, 322,496.55 and 74,812.10 is: 112,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,048.90 : 322,496.55 = 74,812.10 : x
  2. Step 2: Convert to fraction form
    215,048.90/322,496.55 = 74,812.10/x
  3. Step 3: Cross multiply
    215,048.90x = 322,496.55 × 74,812.10
  4. Step 4: Simplify right side
    215,048.90x = 24,126,644,148.26
  5. Step 5: Solve for x
    x = 24,126,644,148.26/215,048.90
  6. Step 6: Final answer
    x = 112,191.43

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1.5x scale

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.