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Finding the Fourth Proportional to 638,282.76, 957,448.44 and 238,881.48

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Solution

The fourth proportional to 638,282.76, 957,448.44 and 238,881.48 is: 358,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,282.76 : 957,448.44 = 238,881.48 : x
  2. Step 2: Convert to fraction form
    638,282.76/957,448.44 = 238,881.48/x
  3. Step 3: Cross multiply
    638,282.76x = 957,448.44 × 238,881.48
  4. Step 4: Simplify right side
    638,282.76x = 228,716,700,370.89
  5. Step 5: Solve for x
    x = 228,716,700,370.89/638,282.76
  6. Step 6: Final answer
    x = 358,331.31

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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.