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Finding the Fourth Proportional to 323,950.14, 485,936.60 and 87,298.47

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Solution

The fourth proportional to 323,950.14, 485,936.60 and 87,298.47 is: 130,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,950.14 : 485,936.60 = 87,298.47 : x
  2. Step 2: Convert to fraction form
    323,950.14/485,936.60 = 87,298.47/x
  3. Step 3: Cross multiply
    323,950.14x = 485,936.60 × 87,298.47
  4. Step 4: Simplify right side
    323,950.14x = 42,421,521,260.51
  5. Step 5: Solve for x
    x = 42,421,521,260.51/323,950.14
  6. Step 6: Final answer
    x = 130,950.77

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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.