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Finding the Fourth Proportional to 393,373, 590,061.66 and 97,885

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Solution

The fourth proportional to 393,373, 590,061.66 and 97,885 is: 146,828.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,373 : 590,061.66 = 97,885 : x
  2. Step 2: Convert to fraction form
    393,373/590,061.66 = 97,885/x
  3. Step 3: Cross multiply
    393,373x = 590,061.66 × 97,885
  4. Step 4: Simplify right side
    393,373x = 57,758,185,589.10
  5. Step 5: Solve for x
    x = 57,758,185,589.10/393,373
  6. Step 6: Final answer
    x = 146,828.04

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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.