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Finding the Fourth Proportional to 437,560.30, 655,356.30 and 260,413.30

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Solution

The fourth proportional to 437,560.30, 655,356.30 and 260,413.30 is: 390,034.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,560.30 : 655,356.30 = 260,413.30 : x
  2. Step 2: Convert to fraction form
    437,560.30/655,356.30 = 260,413.30/x
  3. Step 3: Cross multiply
    437,560.30x = 655,356.30 × 260,413.30
  4. Step 4: Simplify right side
    437,560.30x = 170,663,496,758.79
  5. Step 5: Solve for x
    x = 170,663,496,758.79/437,560.30
  6. Step 6: Final answer
    x = 390,034.23

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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.