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Finding the Fourth Proportional to 158,296.21, 218,405.46 and 101,740.39

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Solution

The fourth proportional to 158,296.21, 218,405.46 and 101,740.39 is: 140,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,296.21 : 218,405.46 = 101,740.39 : x
  2. Step 2: Convert to fraction form
    158,296.21/218,405.46 = 101,740.39/x
  3. Step 3: Cross multiply
    158,296.21x = 218,405.46 × 101,740.39
  4. Step 4: Simplify right side
    158,296.21x = 22,220,656,514.04
  5. Step 5: Solve for x
    x = 22,220,656,514.04/158,296.21
  6. Step 6: Final answer
    x = 140,373.90

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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.