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Finding the Fourth Proportional to 238,643.68, 329,333.60 and 131,206.88

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Solution

The fourth proportional to 238,643.68, 329,333.60 and 131,206.88 is: 181,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,643.68 : 329,333.60 = 131,206.88 : x
  2. Step 2: Convert to fraction form
    238,643.68/329,333.60 = 131,206.88/x
  3. Step 3: Cross multiply
    238,643.68x = 329,333.60 × 131,206.88
  4. Step 4: Simplify right side
    238,643.68x = 43,210,834,135.17
  5. Step 5: Solve for x
    x = 43,210,834,135.17/238,643.68
  6. Step 6: Final answer
    x = 181,068.42

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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.