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Finding the Fourth Proportional to 149,030.80, 223,469.40 and 55,488.40

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Solution

The fourth proportional to 149,030.80, 223,469.40 and 55,488.40 is: 83,204.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,030.80 : 223,469.40 = 55,488.40 : x
  2. Step 2: Convert to fraction form
    149,030.80/223,469.40 = 55,488.40/x
  3. Step 3: Cross multiply
    149,030.80x = 223,469.40 × 55,488.40
  4. Step 4: Simplify right side
    149,030.80x = 12,399,959,454.96
  5. Step 5: Solve for x
    x = 12,399,959,454.96/149,030.80
  6. Step 6: Final answer
    x = 83,204.01

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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.