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Finding the Fourth Proportional to 440,871.71, 660,754.22 and 238,459.68

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Solution

The fourth proportional to 440,871.71, 660,754.22 and 238,459.68 is: 357,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,871.71 : 660,754.22 = 238,459.68 : x
  2. Step 2: Convert to fraction form
    440,871.71/660,754.22 = 238,459.68/x
  3. Step 3: Cross multiply
    440,871.71x = 660,754.22 × 238,459.68
  4. Step 4: Simplify right side
    440,871.71x = 157,563,238,667.55
  5. Step 5: Solve for x
    x = 157,563,238,667.55/440,871.71
  6. Step 6: Final answer
    x = 357,390.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.