Home / 388,430.20-582,645.30-230,577.40

Finding the Fourth Proportional to 388,430.20, 582,645.30 and 230,577.40

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Solution

The fourth proportional to 388,430.20, 582,645.30 and 230,577.40 is: 345,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,430.20 : 582,645.30 = 230,577.40 : x
  2. Step 2: Convert to fraction form
    388,430.20/582,645.30 = 230,577.40/x
  3. Step 3: Cross multiply
    388,430.20x = 582,645.30 × 230,577.40
  4. Step 4: Simplify right side
    388,430.20x = 134,344,838,396.22
  5. Step 5: Solve for x
    x = 134,344,838,396.22/388,430.20
  6. Step 6: Final answer
    x = 345,866.10

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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.