Home / 238,705.81-329,407.45-131,275.85

Finding the Fourth Proportional to 238,705.81, 329,407.45 and 131,275.85

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Solution

The fourth proportional to 238,705.81, 329,407.45 and 131,275.85 is: 181,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.81 : 329,407.45 = 131,275.85 : x
  2. Step 2: Convert to fraction form
    238,705.81/329,407.45 = 131,275.85/x
  3. Step 3: Cross multiply
    238,705.81x = 329,407.45 × 131,275.85
  4. Step 4: Simplify right side
    238,705.81x = 43,243,241,019.86
  5. Step 5: Solve for x
    x = 43,243,241,019.86/238,705.81
  6. Step 6: Final answer
    x = 181,157.05

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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.