Home / 348,344.20-522,386.70-137,938.60

Finding the Fourth Proportional to 348,344.20, 522,386.70 and 137,938.60

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Solution

The fourth proportional to 348,344.20, 522,386.70 and 137,938.60 is: 206,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,344.20 : 522,386.70 = 137,938.60 : x
  2. Step 2: Convert to fraction form
    348,344.20/522,386.70 = 137,938.60/x
  3. Step 3: Cross multiply
    348,344.20x = 522,386.70 × 137,938.60
  4. Step 4: Simplify right side
    348,344.20x = 72,057,290,056.62
  5. Step 5: Solve for x
    x = 72,057,290,056.62/348,344.20
  6. Step 6: Final answer
    x = 206,856.58

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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.