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Finding the Fourth Proportional to 370,266.60, 555,399.90 and 133,645.80

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Solution

The fourth proportional to 370,266.60, 555,399.90 and 133,645.80 is: 200,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,266.60 : 555,399.90 = 133,645.80 : x
  2. Step 2: Convert to fraction form
    370,266.60/555,399.90 = 133,645.80/x
  3. Step 3: Cross multiply
    370,266.60x = 555,399.90 × 133,645.80
  4. Step 4: Simplify right side
    370,266.60x = 74,226,863,955.42
  5. Step 5: Solve for x
    x = 74,226,863,955.42/370,266.60
  6. Step 6: Final answer
    x = 200,468.70

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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.