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Finding the Fourth Proportional to 252,425, 348,353.05 and 137,705.51

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Solution

The fourth proportional to 252,425, 348,353.05 and 137,705.51 is: 190,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,425 : 348,353.05 = 137,705.51 : x
  2. Step 2: Convert to fraction form
    252,425/348,353.05 = 137,705.51/x
  3. Step 3: Cross multiply
    252,425x = 348,353.05 × 137,705.51
  4. Step 4: Simplify right side
    252,425x = 47,970,134,410.31
  5. Step 5: Solve for x
    x = 47,970,134,410.31/252,425
  6. Step 6: Final answer
    x = 190,037.18

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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.