Home / 287,945.12-432,042.42-154,669.88

Finding the Fourth Proportional to 287,945.12, 432,042.42 and 154,669.88

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Solution

The fourth proportional to 287,945.12, 432,042.42 and 154,669.88 is: 232,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,945.12 : 432,042.42 = 154,669.88 : x
  2. Step 2: Convert to fraction form
    287,945.12/432,042.42 = 154,669.88/x
  3. Step 3: Cross multiply
    287,945.12x = 432,042.42 × 154,669.88
  4. Step 4: Simplify right side
    287,945.12x = 66,823,949,256.31
  5. Step 5: Solve for x
    x = 66,823,949,256.31/287,945.12
  6. Step 6: Final answer
    x = 232,071.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.