Home / 307,607.90-424,499.94-171,639.38

Finding the Fourth Proportional to 307,607.90, 424,499.94 and 171,639.38

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Solution

The fourth proportional to 307,607.90, 424,499.94 and 171,639.38 is: 236,862.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,607.90 : 424,499.94 = 171,639.38 : x
  2. Step 2: Convert to fraction form
    307,607.90/424,499.94 = 171,639.38/x
  3. Step 3: Cross multiply
    307,607.90x = 424,499.94 × 171,639.38
  4. Step 4: Simplify right side
    307,607.90x = 72,860,904,389.14
  5. Step 5: Solve for x
    x = 72,860,904,389.14/307,607.90
  6. Step 6: Final answer
    x = 236,862.92

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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.