Home / 371,304.50-556,967.70-90,821.75

Finding the Fourth Proportional to 371,304.50, 556,967.70 and 90,821.75

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Solution

The fourth proportional to 371,304.50, 556,967.70 and 90,821.75 is: 136,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,304.50 : 556,967.70 = 90,821.75 : x
  2. Step 2: Convert to fraction form
    371,304.50/556,967.70 = 90,821.75/x
  3. Step 3: Cross multiply
    371,304.50x = 556,967.70 × 90,821.75
  4. Step 4: Simplify right side
    371,304.50x = 50,584,781,207.48
  5. Step 5: Solve for x
    x = 50,584,781,207.48/371,304.50
  6. Step 6: Final answer
    x = 136,235.30

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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.