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Finding the Fourth Proportional to 252,842.76, 348,921.95 and 139,665.51

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Solution

The fourth proportional to 252,842.76, 348,921.95 and 139,665.51 is: 192,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,842.76 : 348,921.95 = 139,665.51 : x
  2. Step 2: Convert to fraction form
    252,842.76/348,921.95 = 139,665.51/x
  3. Step 3: Cross multiply
    252,842.76x = 348,921.95 × 139,665.51
  4. Step 4: Simplify right side
    252,842.76x = 48,732,361,398.62
  5. Step 5: Solve for x
    x = 48,732,361,398.62/252,842.76
  6. Step 6: Final answer
    x = 192,737.82

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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.