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Finding the Fourth Proportional to 371,198.76, 512,254.27 and 201,432.88

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Solution

The fourth proportional to 371,198.76, 512,254.27 and 201,432.88 is: 277,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,198.76 : 512,254.27 = 201,432.88 : x
  2. Step 2: Convert to fraction form
    371,198.76/512,254.27 = 201,432.88/x
  3. Step 3: Cross multiply
    371,198.76x = 512,254.27 × 201,432.88
  4. Step 4: Simplify right side
    371,198.76x = 103,184,852,898.40
  5. Step 5: Solve for x
    x = 103,184,852,898.40/371,198.76
  6. Step 6: Final answer
    x = 277,977.36

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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.