Home / 287,886.30-431,667.45-110,399.10

Finding the Fourth Proportional to 287,886.30, 431,667.45 and 110,399.10

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Solution

The fourth proportional to 287,886.30, 431,667.45 and 110,399.10 is: 165,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,886.30 : 431,667.45 = 110,399.10 : x
  2. Step 2: Convert to fraction form
    287,886.30/431,667.45 = 110,399.10/x
  3. Step 3: Cross multiply
    287,886.30x = 431,667.45 × 110,399.10
  4. Step 4: Simplify right side
    287,886.30x = 47,655,697,979.30
  5. Step 5: Solve for x
    x = 47,655,697,979.30/287,886.30
  6. Step 6: Final answer
    x = 165,536.53

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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.