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Finding the Fourth Proportional to 361,803.44, 498,829.89 and 258,560.94

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Solution

The fourth proportional to 361,803.44, 498,829.89 and 258,560.94 is: 356,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,803.44 : 498,829.89 = 258,560.94 : x
  2. Step 2: Convert to fraction form
    361,803.44/498,829.89 = 258,560.94/x
  3. Step 3: Cross multiply
    361,803.44x = 498,829.89 × 258,560.94
  4. Step 4: Simplify right side
    361,803.44x = 128,977,928,098.71
  5. Step 5: Solve for x
    x = 128,977,928,098.71/361,803.44
  6. Step 6: Final answer
    x = 356,486.18

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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.