Home / 287,724.30-431,424.45-110,237.10

Finding the Fourth Proportional to 287,724.30, 431,424.45 and 110,237.10

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Solution

The fourth proportional to 287,724.30, 431,424.45 and 110,237.10 is: 165,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,724.30 : 431,424.45 = 110,237.10 : x
  2. Step 2: Convert to fraction form
    287,724.30/431,424.45 = 110,237.10/x
  3. Step 3: Cross multiply
    287,724.30x = 431,424.45 × 110,237.10
  4. Step 4: Simplify right side
    287,724.30x = 47,558,980,237.10
  5. Step 5: Solve for x
    x = 47,558,980,237.10/287,724.30
  6. Step 6: Final answer
    x = 165,293.58

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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.