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Finding the Fourth Proportional to 238,275.21, 328,818.08 and 130,843.08

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Solution

The fourth proportional to 238,275.21, 328,818.08 and 130,843.08 is: 180,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,275.21 : 328,818.08 = 130,843.08 : x
  2. Step 2: Convert to fraction form
    238,275.21/328,818.08 = 130,843.08/x
  3. Step 3: Cross multiply
    238,275.21x = 328,818.08 × 130,843.08
  4. Step 4: Simplify right side
    238,275.21x = 43,023,570,346.89
  5. Step 5: Solve for x
    x = 43,023,570,346.89/238,275.21
  6. Step 6: Final answer
    x = 180,562.51

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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.