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Finding the Fourth Proportional to 312,533.54, 468,737.13 and 87,904.34

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Solution

The fourth proportional to 312,533.54, 468,737.13 and 87,904.34 is: 131,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,533.54 : 468,737.13 = 87,904.34 : x
  2. Step 2: Convert to fraction form
    312,533.54/468,737.13 = 87,904.34/x
  3. Step 3: Cross multiply
    312,533.54x = 468,737.13 × 87,904.34
  4. Step 4: Simplify right side
    312,533.54x = 41,204,027,295.40
  5. Step 5: Solve for x
    x = 41,204,027,295.40/312,533.54
  6. Step 6: Final answer
    x = 131,838.74

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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.