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Finding the Fourth Proportional to 208,203.96, 287,322.39 and 112,710.65

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Solution

The fourth proportional to 208,203.96, 287,322.39 and 112,710.65 is: 155,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,203.96 : 287,322.39 = 112,710.65 : x
  2. Step 2: Convert to fraction form
    208,203.96/287,322.39 = 112,710.65/x
  3. Step 3: Cross multiply
    208,203.96x = 287,322.39 × 112,710.65
  4. Step 4: Simplify right side
    208,203.96x = 32,384,292,772.90
  5. Step 5: Solve for x
    x = 32,384,292,772.90/208,203.96
  6. Step 6: Final answer
    x = 155,541.20

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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.