Home / 236,712.20-355,068.30-148,138.70

Finding the Fourth Proportional to 236,712.20, 355,068.30 and 148,138.70

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Solution

The fourth proportional to 236,712.20, 355,068.30 and 148,138.70 is: 222,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,712.20 : 355,068.30 = 148,138.70 : x
  2. Step 2: Convert to fraction form
    236,712.20/355,068.30 = 148,138.70/x
  3. Step 3: Cross multiply
    236,712.20x = 355,068.30 × 148,138.70
  4. Step 4: Simplify right side
    236,712.20x = 52,599,356,373.21
  5. Step 5: Solve for x
    x = 52,599,356,373.21/236,712.20
  6. Step 6: Final answer
    x = 222,208.05

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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.