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Finding the Fourth Proportional to 334,139.80, 501,209.70 and 123,750.40

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Solution

The fourth proportional to 334,139.80, 501,209.70 and 123,750.40 is: 185,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,139.80 : 501,209.70 = 123,750.40 : x
  2. Step 2: Convert to fraction form
    334,139.80/501,209.70 = 123,750.40/x
  3. Step 3: Cross multiply
    334,139.80x = 501,209.70 × 123,750.40
  4. Step 4: Simplify right side
    334,139.80x = 62,024,900,858.88
  5. Step 5: Solve for x
    x = 62,024,900,858.88/334,139.80
  6. Step 6: Final answer
    x = 185,625.60

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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.