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Finding the Fourth Proportional to 252,487, 348,443.18 and 145,090.72

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Solution

The fourth proportional to 252,487, 348,443.18 and 145,090.72 is: 200,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,487 : 348,443.18 = 145,090.72 : x
  2. Step 2: Convert to fraction form
    252,487/348,443.18 = 145,090.72/x
  3. Step 3: Cross multiply
    252,487x = 348,443.18 × 145,090.72
  4. Step 4: Simplify right side
    252,487x = 50,555,871,865.29
  5. Step 5: Solve for x
    x = 50,555,871,865.29/252,487
  6. Step 6: Final answer
    x = 200,231.58

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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.