Home / 252,316.20-378,547.34-74,827.47

Finding the Fourth Proportional to 252,316.20, 378,547.34 and 74,827.47

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Solution

The fourth proportional to 252,316.20, 378,547.34 and 74,827.47 is: 112,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,316.20 : 378,547.34 = 74,827.47 : x
  2. Step 2: Convert to fraction form
    252,316.20/378,547.34 = 74,827.47/x
  3. Step 3: Cross multiply
    252,316.20x = 378,547.34 × 74,827.47
  4. Step 4: Simplify right side
    252,316.20x = 28,325,739,727.43
  5. Step 5: Solve for x
    x = 28,325,739,727.43/252,316.20
  6. Step 6: Final answer
    x = 112,262.87

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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.