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Finding the Fourth Proportional to 371,425.80, 512,569.02 and 201,659.88

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Solution

The fourth proportional to 371,425.80, 512,569.02 and 201,659.88 is: 278,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,425.80 : 512,569.02 = 201,659.88 : x
  2. Step 2: Convert to fraction form
    371,425.80/512,569.02 = 201,659.88/x
  3. Step 3: Cross multiply
    371,425.80x = 512,569.02 × 201,659.88
  4. Step 4: Simplify right side
    371,425.80x = 103,364,607,064.92
  5. Step 5: Solve for x
    x = 103,364,607,064.92/371,425.80
  6. Step 6: Final answer
    x = 278,291.40

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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.