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Finding the Fourth Proportional to 268,107.34, 402,160.66 and 68,427.72

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Solution

The fourth proportional to 268,107.34, 402,160.66 and 68,427.72 is: 102,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,107.34 : 402,160.66 = 68,427.72 : x
  2. Step 2: Convert to fraction form
    268,107.34/402,160.66 = 68,427.72/x
  3. Step 3: Cross multiply
    268,107.34x = 402,160.66 × 68,427.72
  4. Step 4: Simplify right side
    268,107.34x = 27,518,937,037.50
  5. Step 5: Solve for x
    x = 27,518,937,037.50/268,107.34
  6. Step 6: Final answer
    x = 102,641.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.