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Finding the Fourth Proportional to 238,248.88, 328,783.45 and 137,646.88

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Solution

The fourth proportional to 238,248.88, 328,783.45 and 137,646.88 is: 189,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,248.88 : 328,783.45 = 137,646.88 : x
  2. Step 2: Convert to fraction form
    238,248.88/328,783.45 = 137,646.88/x
  3. Step 3: Cross multiply
    238,248.88x = 328,783.45 × 137,646.88
  4. Step 4: Simplify right side
    238,248.88x = 45,256,014,444.22
  5. Step 5: Solve for x
    x = 45,256,014,444.22/238,248.88
  6. Step 6: Final answer
    x = 189,952.69

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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.