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Finding the Fourth Proportional to 202,374.52, 279,280.92 and 111,730.12

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Solution

The fourth proportional to 202,374.52, 279,280.92 and 111,730.12 is: 154,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,374.52 : 279,280.92 = 111,730.12 : x
  2. Step 2: Convert to fraction form
    202,374.52/279,280.92 = 111,730.12/x
  3. Step 3: Cross multiply
    202,374.52x = 279,280.92 × 111,730.12
  4. Step 4: Simplify right side
    202,374.52x = 31,204,090,705.31
  5. Step 5: Solve for x
    x = 31,204,090,705.31/202,374.52
  6. Step 6: Final answer
    x = 154,189.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.