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Finding the Fourth Proportional to 362,341.98, 542,921.10 and 220,230.72

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Solution

The fourth proportional to 362,341.98, 542,921.10 and 220,230.72 is: 329,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,341.98 : 542,921.10 = 220,230.72 : x
  2. Step 2: Convert to fraction form
    362,341.98/542,921.10 = 220,230.72/x
  3. Step 3: Cross multiply
    362,341.98x = 542,921.10 × 220,230.72
  4. Step 4: Simplify right side
    362,341.98x = 119,567,904,756.19
  5. Step 5: Solve for x
    x = 119,567,904,756.19/362,341.98
  6. Step 6: Final answer
    x = 329,986.34

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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.