Home / 245,381.15-338,623.95-137,951.66

Finding the Fourth Proportional to 245,381.15, 338,623.95 and 137,951.66

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Solution

The fourth proportional to 245,381.15, 338,623.95 and 137,951.66 is: 190,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,381.15 : 338,623.95 = 137,951.66 : x
  2. Step 2: Convert to fraction form
    245,381.15/338,623.95 = 137,951.66/x
  3. Step 3: Cross multiply
    245,381.15x = 338,623.95 × 137,951.66
  4. Step 4: Simplify right side
    245,381.15x = 46,713,736,018.26
  5. Step 5: Solve for x
    x = 46,713,736,018.26/245,381.15
  6. Step 6: Final answer
    x = 190,372.15

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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.