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Finding the Fourth Proportional to 427,372.64, 589,722.48 and 236,360

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Solution

The fourth proportional to 427,372.64, 589,722.48 and 236,360 is: 326,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,372.64 : 589,722.48 = 236,360 : x
  2. Step 2: Convert to fraction form
    427,372.64/589,722.48 = 236,360/x
  3. Step 3: Cross multiply
    427,372.64x = 589,722.48 × 236,360
  4. Step 4: Simplify right side
    427,372.64x = 139,386,805,372.80
  5. Step 5: Solve for x
    x = 139,386,805,372.80/427,372.64
  6. Step 6: Final answer
    x = 326,148.17

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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.