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Finding the Fourth Proportional to 210,019.75, 315,029.64 and 62,275.75

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Solution

The fourth proportional to 210,019.75, 315,029.64 and 62,275.75 is: 93,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,019.75 : 315,029.64 = 62,275.75 : x
  2. Step 2: Convert to fraction form
    210,019.75/315,029.64 = 62,275.75/x
  3. Step 3: Cross multiply
    210,019.75x = 315,029.64 × 62,275.75
  4. Step 4: Simplify right side
    210,019.75x = 19,618,707,103.23
  5. Step 5: Solve for x
    x = 19,618,707,103.23/210,019.75
  6. Step 6: Final answer
    x = 93,413.63

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1.5x scale

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.