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Finding the Fourth Proportional to 202,989.61, 280,117.05 and 112,337.10

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Solution

The fourth proportional to 202,989.61, 280,117.05 and 112,337.10 is: 155,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,989.61 : 280,117.05 = 112,337.10 : x
  2. Step 2: Convert to fraction form
    202,989.61/280,117.05 = 112,337.10/x
  3. Step 3: Cross multiply
    202,989.61x = 280,117.05 × 112,337.10
  4. Step 4: Simplify right side
    202,989.61x = 31,467,537,057.56
  5. Step 5: Solve for x
    x = 31,467,537,057.56/202,989.61
  6. Step 6: Final answer
    x = 155,020.43

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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.