Home / 287,971.16-397,479.24-167,151.37

Finding the Fourth Proportional to 287,971.16, 397,479.24 and 167,151.37

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Solution

The fourth proportional to 287,971.16, 397,479.24 and 167,151.37 is: 230,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,971.16 : 397,479.24 = 167,151.37 : x
  2. Step 2: Convert to fraction form
    287,971.16/397,479.24 = 167,151.37/x
  3. Step 3: Cross multiply
    287,971.16x = 397,479.24 × 167,151.37
  4. Step 4: Simplify right side
    287,971.16x = 66,439,198,100.98
  5. Step 5: Solve for x
    x = 66,439,198,100.98/287,971.16
  6. Step 6: Final answer
    x = 230,714.77

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1.5x scale

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.