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Finding the Fourth Proportional to 318,994.46, 478,585.09 and 94,360.87

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Solution

The fourth proportional to 318,994.46, 478,585.09 and 94,360.87 is: 141,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,994.46 : 478,585.09 = 94,360.87 : x
  2. Step 2: Convert to fraction form
    318,994.46/478,585.09 = 94,360.87/x
  3. Step 3: Cross multiply
    318,994.46x = 478,585.09 × 94,360.87
  4. Step 4: Simplify right side
    318,994.46x = 45,159,703,852.14
  5. Step 5: Solve for x
    x = 45,159,703,852.14/318,994.46
  6. Step 6: Final answer
    x = 141,568.93

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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.