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Finding the Fourth Proportional to 252,667.62, 348,681.78 and 139,490.46

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Solution

The fourth proportional to 252,667.62, 348,681.78 and 139,490.46 is: 192,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,667.62 : 348,681.78 = 139,490.46 : x
  2. Step 2: Convert to fraction form
    252,667.62/348,681.78 = 139,490.46/x
  3. Step 3: Cross multiply
    252,667.62x = 348,681.78 × 139,490.46
  4. Step 4: Simplify right side
    252,667.62x = 48,637,781,885.82
  5. Step 5: Solve for x
    x = 48,637,781,885.82/252,667.62
  6. Step 6: Final answer
    x = 192,497.09

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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.