Home / 279,582.40-417,346.58-258,769.48

Finding the Fourth Proportional to 279,582.40, 417,346.58 and 258,769.48

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Solution

The fourth proportional to 279,582.40, 417,346.58 and 258,769.48 is: 386,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,582.40 : 417,346.58 = 258,769.48 : x
  2. Step 2: Convert to fraction form
    279,582.40/417,346.58 = 258,769.48/x
  3. Step 3: Cross multiply
    279,582.40x = 417,346.58 × 258,769.48
  4. Step 4: Simplify right side
    279,582.40x = 107,996,557,486.38
  5. Step 5: Solve for x
    x = 107,996,557,486.38/279,582.40
  6. Step 6: Final answer
    x = 386,278.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.