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Finding the Fourth Proportional to 307,603.48, 424,522.10 and 186,717.04

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Solution

The fourth proportional to 307,603.48, 424,522.10 and 186,717.04 is: 257,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,603.48 : 424,522.10 = 186,717.04 : x
  2. Step 2: Convert to fraction form
    307,603.48/424,522.10 = 186,717.04/x
  3. Step 3: Cross multiply
    307,603.48x = 424,522.10 × 186,717.04
  4. Step 4: Simplify right side
    307,603.48x = 79,265,509,926.58
  5. Step 5: Solve for x
    x = 79,265,509,926.58/307,603.48
  6. Step 6: Final answer
    x = 257,687.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.