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Finding the Fourth Proportional to 270,191.34, 372,839.64 and 155,439.42

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Solution

The fourth proportional to 270,191.34, 372,839.64 and 155,439.42 is: 214,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,191.34 : 372,839.64 = 155,439.42 : x
  2. Step 2: Convert to fraction form
    270,191.34/372,839.64 = 155,439.42/x
  3. Step 3: Cross multiply
    270,191.34x = 372,839.64 × 155,439.42
  4. Step 4: Simplify right side
    270,191.34x = 57,953,977,394.61
  5. Step 5: Solve for x
    x = 57,953,977,394.61/270,191.34
  6. Step 6: Final answer
    x = 214,492.36

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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.