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Finding the Fourth Proportional to 362,386.80, 542,543.40 and 222,418.80

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Solution

The fourth proportional to 362,386.80, 542,543.40 and 222,418.80 is: 332,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,386.80 : 542,543.40 = 222,418.80 : x
  2. Step 2: Convert to fraction form
    362,386.80/542,543.40 = 222,418.80/x
  3. Step 3: Cross multiply
    362,386.80x = 542,543.40 × 222,418.80
  4. Step 4: Simplify right side
    362,386.80x = 120,671,851,975.92
  5. Step 5: Solve for x
    x = 120,671,851,975.92/362,386.80
  6. Step 6: Final answer
    x = 332,991.85

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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.