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Finding the Fourth Proportional to 202,807.50, 279,863.30 and 112,158.18

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Solution

The fourth proportional to 202,807.50, 279,863.30 and 112,158.18 is: 154,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,807.50 : 279,863.30 = 112,158.18 : x
  2. Step 2: Convert to fraction form
    202,807.50/279,863.30 = 112,158.18/x
  3. Step 3: Cross multiply
    202,807.50x = 279,863.30 × 112,158.18
  4. Step 4: Simplify right side
    202,807.50x = 31,388,958,376.79
  5. Step 5: Solve for x
    x = 31,388,958,376.79/202,807.50
  6. Step 6: Final answer
    x = 154,772.18

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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.