Home / 393,531.40-543,154.04-250,263.76

Finding the Fourth Proportional to 393,531.40, 543,154.04 and 250,263.76

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Solution

The fourth proportional to 393,531.40, 543,154.04 and 250,263.76 is: 345,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,531.40 : 543,154.04 = 250,263.76 : x
  2. Step 2: Convert to fraction form
    393,531.40/543,154.04 = 250,263.76/x
  3. Step 3: Cross multiply
    393,531.40x = 543,154.04 × 250,263.76
  4. Step 4: Simplify right side
    393,531.40x = 135,931,772,309.59
  5. Step 5: Solve for x
    x = 135,931,772,309.59/393,531.40
  6. Step 6: Final answer
    x = 345,415.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.