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Finding the Fourth Proportional to 453,381.40, 680,097.70 and 137,848.60

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Solution

The fourth proportional to 453,381.40, 680,097.70 and 137,848.60 is: 206,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,381.40 : 680,097.70 = 137,848.60 : x
  2. Step 2: Convert to fraction form
    453,381.40/680,097.70 = 137,848.60/x
  3. Step 3: Cross multiply
    453,381.40x = 680,097.70 × 137,848.60
  4. Step 4: Simplify right side
    453,381.40x = 93,750,515,808.22
  5. Step 5: Solve for x
    x = 93,750,515,808.22/453,381.40
  6. Step 6: Final answer
    x = 206,780.68

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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.