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Finding the Fourth Proportional to 248,902.40, 343,484.67 and 135,725.15

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Solution

The fourth proportional to 248,902.40, 343,484.67 and 135,725.15 is: 187,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,902.40 : 343,484.67 = 135,725.15 : x
  2. Step 2: Convert to fraction form
    248,902.40/343,484.67 = 135,725.15/x
  3. Step 3: Cross multiply
    248,902.40x = 343,484.67 × 135,725.15
  4. Step 4: Simplify right side
    248,902.40x = 46,619,506,641.03
  5. Step 5: Solve for x
    x = 46,619,506,641.03/248,902.40
  6. Step 6: Final answer
    x = 187,300.35

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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.