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Finding the Fourth Proportional to 245,748.88, 368,672.52 and 77,311.60

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Solution

The fourth proportional to 245,748.88, 368,672.52 and 77,311.60 is: 115,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,748.88 : 368,672.52 = 77,311.60 : x
  2. Step 2: Convert to fraction form
    245,748.88/368,672.52 = 77,311.60/x
  3. Step 3: Cross multiply
    245,748.88x = 368,672.52 × 77,311.60
  4. Step 4: Simplify right side
    245,748.88x = 28,502,662,397.23
  5. Step 5: Solve for x
    x = 28,502,662,397.23/245,748.88
  6. Step 6: Final answer
    x = 115,982.88

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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.