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Finding the Fourth Proportional to 215,061.60, 322,246.80 and 179,810.40

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Solution

The fourth proportional to 215,061.60, 322,246.80 and 179,810.40 is: 269,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,061.60 : 322,246.80 = 179,810.40 : x
  2. Step 2: Convert to fraction form
    215,061.60/322,246.80 = 179,810.40/x
  3. Step 3: Cross multiply
    215,061.60x = 322,246.80 × 179,810.40
  4. Step 4: Simplify right side
    215,061.60x = 57,943,326,006.72
  5. Step 5: Solve for x
    x = 57,943,326,006.72/215,061.60
  6. Step 6: Final answer
    x = 269,426.65

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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.