Home / 407,259.12-610,742.28-140,947.36

Finding the Fourth Proportional to 407,259.12, 610,742.28 and 140,947.36

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Solution

The fourth proportional to 407,259.12, 610,742.28 and 140,947.36 is: 211,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,259.12 : 610,742.28 = 140,947.36 : x
  2. Step 2: Convert to fraction form
    407,259.12/610,742.28 = 140,947.36/x
  3. Step 3: Cross multiply
    407,259.12x = 610,742.28 × 140,947.36
  4. Step 4: Simplify right side
    407,259.12x = 86,082,512,006.38
  5. Step 5: Solve for x
    x = 86,082,512,006.38/407,259.12
  6. Step 6: Final answer
    x = 211,370.37

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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.