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Finding the Fourth Proportional to 252,785.84, 348,862.83 and 145,389.56

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Solution

The fourth proportional to 252,785.84, 348,862.83 and 145,389.56 is: 200,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,785.84 : 348,862.83 = 145,389.56 : x
  2. Step 2: Convert to fraction form
    252,785.84/348,862.83 = 145,389.56/x
  3. Step 3: Cross multiply
    252,785.84x = 348,862.83 × 145,389.56
  4. Step 4: Simplify right side
    252,785.84x = 50,721,013,354.05
  5. Step 5: Solve for x
    x = 50,721,013,354.05/252,785.84
  6. Step 6: Final answer
    x = 200,648.16

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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.