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Finding the Fourth Proportional to 362,228.80, 543,343.20 and 125,595.40

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Solution

The fourth proportional to 362,228.80, 543,343.20 and 125,595.40 is: 188,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,228.80 : 543,343.20 = 125,595.40 : x
  2. Step 2: Convert to fraction form
    362,228.80/543,343.20 = 125,595.40/x
  3. Step 3: Cross multiply
    362,228.80x = 543,343.20 × 125,595.40
  4. Step 4: Simplify right side
    362,228.80x = 68,241,406,541.28
  5. Step 5: Solve for x
    x = 68,241,406,541.28/362,228.80
  6. Step 6: Final answer
    x = 188,393.10

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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.