Home / 238,316.40-328,877.82-129,421.08

Finding the Fourth Proportional to 238,316.40, 328,877.82 and 129,421.08

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Solution

The fourth proportional to 238,316.40, 328,877.82 and 129,421.08 is: 178,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,316.40 : 328,877.82 = 129,421.08 : x
  2. Step 2: Convert to fraction form
    238,316.40/328,877.82 = 129,421.08/x
  3. Step 3: Cross multiply
    238,316.40x = 328,877.82 × 129,421.08
  4. Step 4: Simplify right side
    238,316.40x = 42,563,722,652.45
  5. Step 5: Solve for x
    x = 42,563,722,652.45/238,316.40
  6. Step 6: Final answer
    x = 178,601.74

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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.