Home / 435,413.57-653,369.09-169,139.43

Finding the Fourth Proportional to 435,413.57, 653,369.09 and 169,139.43

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Solution

The fourth proportional to 435,413.57, 653,369.09 and 169,139.43 is: 253,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,413.57 : 653,369.09 = 169,139.43 : x
  2. Step 2: Convert to fraction form
    435,413.57/653,369.09 = 169,139.43/x
  3. Step 3: Cross multiply
    435,413.57x = 653,369.09 × 169,139.43
  4. Step 4: Simplify right side
    435,413.57x = 110,510,474,616.52
  5. Step 5: Solve for x
    x = 110,510,474,616.52/435,413.57
  6. Step 6: Final answer
    x = 253,805.77

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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.