Home / 205,272.60-307,617.30-142,870.20

Finding the Fourth Proportional to 205,272.60, 307,617.30 and 142,870.20

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Solution

The fourth proportional to 205,272.60, 307,617.30 and 142,870.20 is: 214,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,272.60 : 307,617.30 = 142,870.20 : x
  2. Step 2: Convert to fraction form
    205,272.60/307,617.30 = 142,870.20/x
  3. Step 3: Cross multiply
    205,272.60x = 307,617.30 × 142,870.20
  4. Step 4: Simplify right side
    205,272.60x = 43,949,345,174.46
  5. Step 5: Solve for x
    x = 43,949,345,174.46/205,272.60
  6. Step 6: Final answer
    x = 214,102.35

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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.