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Finding the Fourth Proportional to 374,331, 561,159.54 and 137,623.08

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Solution

The fourth proportional to 374,331, 561,159.54 and 137,623.08 is: 206,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,331 : 561,159.54 = 137,623.08 : x
  2. Step 2: Convert to fraction form
    374,331/561,159.54 = 137,623.08/x
  3. Step 3: Cross multiply
    374,331x = 561,159.54 × 137,623.08
  4. Step 4: Simplify right side
    374,331x = 77,228,504,266.18
  5. Step 5: Solve for x
    x = 77,228,504,266.18/374,331
  6. Step 6: Final answer
    x = 206,310.74

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1.5x scale

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.