Home / 243,821.49-336,486.73-136,385.12

Finding the Fourth Proportional to 243,821.49, 336,486.73 and 136,385.12

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Solution

The fourth proportional to 243,821.49, 336,486.73 and 136,385.12 is: 188,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,821.49 : 336,486.73 = 136,385.12 : x
  2. Step 2: Convert to fraction form
    243,821.49/336,486.73 = 136,385.12/x
  3. Step 3: Cross multiply
    243,821.49x = 336,486.73 × 136,385.12
  4. Step 4: Simplify right side
    243,821.49x = 45,891,782,296.28
  5. Step 5: Solve for x
    x = 45,891,782,296.28/243,821.49
  6. Step 6: Final answer
    x = 188,218.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.