Home / 287,971.78-397,480.10-167,152.00

Finding the Fourth Proportional to 287,971.78, 397,480.10 and 167,152.00

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Solution

The fourth proportional to 287,971.78, 397,480.10 and 167,152.00 is: 230,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,971.78 : 397,480.10 = 167,152.00 : x
  2. Step 2: Convert to fraction form
    287,971.78/397,480.10 = 167,152.00/x
  3. Step 3: Cross multiply
    287,971.78x = 397,480.10 × 167,152.00
  4. Step 4: Simplify right side
    287,971.78x = 66,439,591,687.80
  5. Step 5: Solve for x
    x = 66,439,591,687.80/287,971.78
  6. Step 6: Final answer
    x = 230,715.63

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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.