Home / 309,938.43-464,853.20-85,244.69

Finding the Fourth Proportional to 309,938.43, 464,853.20 and 85,244.69

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Solution

The fourth proportional to 309,938.43, 464,853.20 and 85,244.69 is: 127,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,938.43 : 464,853.20 = 85,244.69 : x
  2. Step 2: Convert to fraction form
    309,938.43/464,853.20 = 85,244.69/x
  3. Step 3: Cross multiply
    309,938.43x = 464,853.20 × 85,244.69
  4. Step 4: Simplify right side
    309,938.43x = 39,626,264,179.02
  5. Step 5: Solve for x
    x = 39,626,264,179.02/309,938.43
  6. Step 6: Final answer
    x = 127,852.05

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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.