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Finding the Fourth Proportional to 311,321.93, 466,671.09 and 121,521.32

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Solution

The fourth proportional to 311,321.93, 466,671.09 and 121,521.32 is: 182,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,321.93 : 466,671.09 = 121,521.32 : x
  2. Step 2: Convert to fraction form
    311,321.93/466,671.09 = 121,521.32/x
  3. Step 3: Cross multiply
    311,321.93x = 466,671.09 × 121,521.32
  4. Step 4: Simplify right side
    311,321.93x = 56,710,484,529.28
  5. Step 5: Solve for x
    x = 56,710,484,529.28/311,321.93
  6. Step 6: Final answer
    x = 182,160.26

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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.