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Finding the Fourth Proportional to 238,031.84, 328,494.21 and 142,520.29

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Solution

The fourth proportional to 238,031.84, 328,494.21 and 142,520.29 is: 196,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,031.84 : 328,494.21 = 142,520.29 : x
  2. Step 2: Convert to fraction form
    238,031.84/328,494.21 = 142,520.29/x
  3. Step 3: Cross multiply
    238,031.84x = 328,494.21 × 142,520.29
  4. Step 4: Simplify right side
    238,031.84x = 46,817,090,072.52
  5. Step 5: Solve for x
    x = 46,817,090,072.52/238,031.84
  6. Step 6: Final answer
    x = 196,684.15

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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.