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Finding the Fourth Proportional to 401,348.71, 601,646.40 and 134,922.88

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Solution

The fourth proportional to 401,348.71, 601,646.40 and 134,922.88 is: 202,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,348.71 : 601,646.40 = 134,922.88 : x
  2. Step 2: Convert to fraction form
    401,348.71/601,646.40 = 134,922.88/x
  3. Step 3: Cross multiply
    401,348.71x = 601,646.40 × 134,922.88
  4. Step 4: Simplify right side
    401,348.71x = 81,175,865,029.63
  5. Step 5: Solve for x
    x = 81,175,865,029.63/401,348.71
  6. Step 6: Final answer
    x = 202,257.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.