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Finding the Fourth Proportional to 208,401.17, 287,593.88 and 112,907.84

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Solution

The fourth proportional to 208,401.17, 287,593.88 and 112,907.84 is: 155,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,401.17 : 287,593.88 = 112,907.84 : x
  2. Step 2: Convert to fraction form
    208,401.17/287,593.88 = 112,907.84/x
  3. Step 3: Cross multiply
    208,401.17x = 287,593.88 × 112,907.84
  4. Step 4: Simplify right side
    208,401.17x = 32,471,601,785.51
  5. Step 5: Solve for x
    x = 32,471,601,785.51/208,401.17
  6. Step 6: Final answer
    x = 155,812.96

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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.