Home / 345,862.20-518,307.30-274,906.20

Finding the Fourth Proportional to 345,862.20, 518,307.30 and 274,906.20

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Solution

The fourth proportional to 345,862.20, 518,307.30 and 274,906.20 is: 411,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,862.20 : 518,307.30 = 274,906.20 : x
  2. Step 2: Convert to fraction form
    345,862.20/518,307.30 = 274,906.20/x
  3. Step 3: Cross multiply
    345,862.20x = 518,307.30 × 274,906.20
  4. Step 4: Simplify right side
    345,862.20x = 142,485,890,275.26
  5. Step 5: Solve for x
    x = 142,485,890,275.26/345,862.20
  6. Step 6: Final answer
    x = 411,973.01

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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.