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Finding the Fourth Proportional to 284,686.33, 392,867.22 and 155,625.37

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Solution

The fourth proportional to 284,686.33, 392,867.22 and 155,625.37 is: 214,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,686.33 : 392,867.22 = 155,625.37 : x
  2. Step 2: Convert to fraction form
    284,686.33/392,867.22 = 155,625.37/x
  3. Step 3: Cross multiply
    284,686.33x = 392,867.22 × 155,625.37
  4. Step 4: Simplify right side
    284,686.33x = 61,140,106,473.37
  5. Step 5: Solve for x
    x = 61,140,106,473.37/284,686.33
  6. Step 6: Final answer
    x = 214,763.06

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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.