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Finding the Fourth Proportional to 252,440.98, 348,369.53 and 137,722.20

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Solution

The fourth proportional to 252,440.98, 348,369.53 and 137,722.20 is: 190,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,440.98 : 348,369.53 = 137,722.20 : x
  2. Step 2: Convert to fraction form
    252,440.98/348,369.53 = 137,722.20/x
  3. Step 3: Cross multiply
    252,440.98x = 348,369.53 × 137,722.20
  4. Step 4: Simplify right side
    252,440.98x = 47,978,217,041.49
  5. Step 5: Solve for x
    x = 47,978,217,041.49/252,440.98
  6. Step 6: Final answer
    x = 190,057.17

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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.