Home / 205,444.63-307,640.85-142,177.15

Finding the Fourth Proportional to 205,444.63, 307,640.85 and 142,177.15

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Solution

The fourth proportional to 205,444.63, 307,640.85 and 142,177.15 is: 212,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,444.63 : 307,640.85 = 142,177.15 : x
  2. Step 2: Convert to fraction form
    205,444.63/307,640.85 = 142,177.15/x
  3. Step 3: Cross multiply
    205,444.63x = 307,640.85 × 142,177.15
  4. Step 4: Simplify right side
    205,444.63x = 43,739,499,276.58
  5. Step 5: Solve for x
    x = 43,739,499,276.58/205,444.63
  6. Step 6: Final answer
    x = 212,901.64

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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.