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Finding the Fourth Proportional to 304,085.15, 456,192.11 and 90,869.66

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Solution

The fourth proportional to 304,085.15, 456,192.11 and 90,869.66 is: 136,323.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,085.15 : 456,192.11 = 90,869.66 : x
  2. Step 2: Convert to fraction form
    304,085.15/456,192.11 = 90,869.66/x
  3. Step 3: Cross multiply
    304,085.15x = 456,192.11 × 90,869.66
  4. Step 4: Simplify right side
    304,085.15x = 41,454,019,649.42
  5. Step 5: Solve for x
    x = 41,454,019,649.42/304,085.15
  6. Step 6: Final answer
    x = 136,323.72

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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.