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Finding the Fourth Proportional to 270,188.74, 372,874.62 and 155,484.87

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Solution

The fourth proportional to 270,188.74, 372,874.62 and 155,484.87 is: 214,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,188.74 : 372,874.62 = 155,484.87 : x
  2. Step 2: Convert to fraction form
    270,188.74/372,874.62 = 155,484.87/x
  3. Step 3: Cross multiply
    270,188.74x = 372,874.62 × 155,484.87
  4. Step 4: Simplify right side
    270,188.74x = 57,976,359,952.63
  5. Step 5: Solve for x
    x = 57,976,359,952.63/270,188.74
  6. Step 6: Final answer
    x = 214,577.26

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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.