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Finding the Fourth Proportional to 238,641.40, 329,320.56 and 131,210.40

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Solution

The fourth proportional to 238,641.40, 329,320.56 and 131,210.40 is: 181,067.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,641.40 : 329,320.56 = 131,210.40 : x
  2. Step 2: Convert to fraction form
    238,641.40/329,320.56 = 131,210.40/x
  3. Step 3: Cross multiply
    238,641.40x = 329,320.56 × 131,210.40
  4. Step 4: Simplify right side
    238,641.40x = 43,210,282,405.82
  5. Step 5: Solve for x
    x = 43,210,282,405.82/238,641.40
  6. Step 6: Final answer
    x = 181,067.84

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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.