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Finding the Fourth Proportional to 250,017.48, 345,024 and 136,840.20

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Solution

The fourth proportional to 250,017.48, 345,024 and 136,840.20 is: 188,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,017.48 : 345,024 = 136,840.20 : x
  2. Step 2: Convert to fraction form
    250,017.48/345,024 = 136,840.20/x
  3. Step 3: Cross multiply
    250,017.48x = 345,024 × 136,840.20
  4. Step 4: Simplify right side
    250,017.48x = 47,213,153,164.80
  5. Step 5: Solve for x
    x = 47,213,153,164.80/250,017.48
  6. Step 6: Final answer
    x = 188,839.41

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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.