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Finding the Fourth Proportional to 207,893.52, 286,893.12 and 112,400.22

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Solution

The fourth proportional to 207,893.52, 286,893.12 and 112,400.22 is: 155,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,893.52 : 286,893.12 = 112,400.22 : x
  2. Step 2: Convert to fraction form
    207,893.52/286,893.12 = 112,400.22/x
  3. Step 3: Cross multiply
    207,893.52x = 286,893.12 × 112,400.22
  4. Step 4: Simplify right side
    207,893.52x = 32,246,849,804.49
  5. Step 5: Solve for x
    x = 32,246,849,804.49/207,893.52
  6. Step 6: Final answer
    x = 155,112.34

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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.