Home / 243,865.26-336,547.13-136,428.88

Finding the Fourth Proportional to 243,865.26, 336,547.13 and 136,428.88

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Solution

The fourth proportional to 243,865.26, 336,547.13 and 136,428.88 is: 188,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,865.26 : 336,547.13 = 136,428.88 : x
  2. Step 2: Convert to fraction form
    243,865.26/336,547.13 = 136,428.88/x
  3. Step 3: Cross multiply
    243,865.26x = 336,547.13 × 136,428.88
  4. Step 4: Simplify right side
    243,865.26x = 45,914,748,013.11
  5. Step 5: Solve for x
    x = 45,914,748,013.11/243,865.26
  6. Step 6: Final answer
    x = 188,279.17

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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.