Home / 243,858.15-336,521.97-136,428.57

Finding the Fourth Proportional to 243,858.15, 336,521.97 and 136,428.57

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Solution

The fourth proportional to 243,858.15, 336,521.97 and 136,428.57 is: 188,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,858.15 : 336,521.97 = 136,428.57 : x
  2. Step 2: Convert to fraction form
    243,858.15/336,521.97 = 136,428.57/x
  3. Step 3: Cross multiply
    243,858.15x = 336,521.97 × 136,428.57
  4. Step 4: Simplify right side
    243,858.15x = 45,911,211,140.68
  5. Step 5: Solve for x
    x = 45,911,211,140.68/243,858.15
  6. Step 6: Final answer
    x = 188,270.15

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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.