Home / 401,091.20-553,757.52-258,099.74

Finding the Fourth Proportional to 401,091.20, 553,757.52 and 258,099.74

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Solution

The fourth proportional to 401,091.20, 553,757.52 and 258,099.74 is: 356,339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,091.20 : 553,757.52 = 258,099.74 : x
  2. Step 2: Convert to fraction form
    401,091.20/553,757.52 = 258,099.74/x
  3. Step 3: Cross multiply
    401,091.20x = 553,757.52 × 258,099.74
  4. Step 4: Simplify right side
    401,091.20x = 142,924,671,935.05
  5. Step 5: Solve for x
    x = 142,924,671,935.05/401,091.20
  6. Step 6: Final answer
    x = 356,339.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.