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Finding the Fourth Proportional to 180,671.55, 270,711.68 and 109,378.10

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Solution

The fourth proportional to 180,671.55, 270,711.68 and 109,378.10 is: 163,888.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,671.55 : 270,711.68 = 109,378.10 : x
  2. Step 2: Convert to fraction form
    180,671.55/270,711.68 = 109,378.10/x
  3. Step 3: Cross multiply
    180,671.55x = 270,711.68 × 109,378.10
  4. Step 4: Simplify right side
    180,671.55x = 29,609,927,305.76
  5. Step 5: Solve for x
    x = 29,609,927,305.76/180,671.55
  6. Step 6: Final answer
    x = 163,888.16

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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.