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Finding the Fourth Proportional to 370,297.52, 555,331.20 and 133,609.40

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Solution

The fourth proportional to 370,297.52, 555,331.20 and 133,609.40 is: 200,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,297.52 : 555,331.20 = 133,609.40 : x
  2. Step 2: Convert to fraction form
    370,297.52/555,331.20 = 133,609.40/x
  3. Step 3: Cross multiply
    370,297.52x = 555,331.20 × 133,609.40
  4. Step 4: Simplify right side
    370,297.52x = 74,197,468,433.28
  5. Step 5: Solve for x
    x = 74,197,468,433.28/370,297.52
  6. Step 6: Final answer
    x = 200,372.58

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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.