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Finding the Fourth Proportional to 345,492.74, 476,760.28 and 190,413.23

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Solution

The fourth proportional to 345,492.74, 476,760.28 and 190,413.23 is: 262,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,492.74 : 476,760.28 = 190,413.23 : x
  2. Step 2: Convert to fraction form
    345,492.74/476,760.28 = 190,413.23/x
  3. Step 3: Cross multiply
    345,492.74x = 476,760.28 × 190,413.23
  4. Step 4: Simplify right side
    345,492.74x = 90,781,465,029.47
  5. Step 5: Solve for x
    x = 90,781,465,029.47/345,492.74
  6. Step 6: Final answer
    x = 262,759.40

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1.5x scale

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.