Home / 287,972.28-397,480.79-167,152.49

Finding the Fourth Proportional to 287,972.28, 397,480.79 and 167,152.49

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Solution

The fourth proportional to 287,972.28, 397,480.79 and 167,152.49 is: 230,716.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,972.28 : 397,480.79 = 167,152.49 : x
  2. Step 2: Convert to fraction form
    287,972.28/397,480.79 = 167,152.49/x
  3. Step 3: Cross multiply
    287,972.28x = 397,480.79 × 167,152.49
  4. Step 4: Simplify right side
    287,972.28x = 66,439,903,775.67
  5. Step 5: Solve for x
    x = 66,439,903,775.67/287,972.28
  6. Step 6: Final answer
    x = 230,716.32

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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.