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Finding the Fourth Proportional to 248,781.40, 343,373.70 and 158,119.72

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Solution

The fourth proportional to 248,781.40, 343,373.70 and 158,119.72 is: 218,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,781.40 : 343,373.70 = 158,119.72 : x
  2. Step 2: Convert to fraction form
    248,781.40/343,373.70 = 158,119.72/x
  3. Step 3: Cross multiply
    248,781.40x = 343,373.70 × 158,119.72
  4. Step 4: Simplify right side
    248,781.40x = 54,294,153,299.36
  5. Step 5: Solve for x
    x = 54,294,153,299.36/248,781.40
  6. Step 6: Final answer
    x = 218,240.40

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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.