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Finding the Fourth Proportional to 238,169.64, 328,672.80 and 130,741.50

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Solution

The fourth proportional to 238,169.64, 328,672.80 and 130,741.50 is: 180,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,169.64 : 328,672.80 = 130,741.50 : x
  2. Step 2: Convert to fraction form
    238,169.64/328,672.80 = 130,741.50/x
  3. Step 3: Cross multiply
    238,169.64x = 328,672.80 × 130,741.50
  4. Step 4: Simplify right side
    238,169.64x = 42,971,174,138.96
  5. Step 5: Solve for x
    x = 42,971,174,138.96/238,169.64
  6. Step 6: Final answer
    x = 180,422.55

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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.