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Finding the Fourth Proportional to 370,000.80, 555,130.80 and 133,351.20

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Solution

The fourth proportional to 370,000.80, 555,130.80 and 133,351.20 is: 200,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,000.80 : 555,130.80 = 133,351.20 : x
  2. Step 2: Convert to fraction form
    370,000.80/555,130.80 = 133,351.20/x
  3. Step 3: Cross multiply
    370,000.80x = 555,130.80 × 133,351.20
  4. Step 4: Simplify right side
    370,000.80x = 74,027,358,336.96
  5. Step 5: Solve for x
    x = 74,027,358,336.96/370,000.80
  6. Step 6: Final answer
    x = 200,073.51

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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.