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Finding the Fourth Proportional to 171,068.60, 256,748.70 and 76,444.40

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Solution

The fourth proportional to 171,068.60, 256,748.70 and 76,444.40 is: 114,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,068.60 : 256,748.70 = 76,444.40 : x
  2. Step 2: Convert to fraction form
    171,068.60/256,748.70 = 76,444.40/x
  3. Step 3: Cross multiply
    171,068.60x = 256,748.70 × 76,444.40
  4. Step 4: Simplify right side
    171,068.60x = 19,627,000,322.28
  5. Step 5: Solve for x
    x = 19,627,000,322.28/171,068.60
  6. Step 6: Final answer
    x = 114,731.75

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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.