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Finding the Fourth Proportional to 231,254.40, 346,740.80 and 90,844.80

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Solution

The fourth proportional to 231,254.40, 346,740.80 and 90,844.80 is: 136,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,254.40 : 346,740.80 = 90,844.80 : x
  2. Step 2: Convert to fraction form
    231,254.40/346,740.80 = 90,844.80/x
  3. Step 3: Cross multiply
    231,254.40x = 346,740.80 × 90,844.80
  4. Step 4: Simplify right side
    231,254.40x = 31,499,598,627.84
  5. Step 5: Solve for x
    x = 31,499,598,627.84/231,254.40
  6. Step 6: Final answer
    x = 136,211.89

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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.