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Finding the Fourth Proportional to 230,769.80, 346,413.90 and 178,411.40

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Solution

The fourth proportional to 230,769.80, 346,413.90 and 178,411.40 is: 267,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,769.80 : 346,413.90 = 178,411.40 : x
  2. Step 2: Convert to fraction form
    230,769.80/346,413.90 = 178,411.40/x
  3. Step 3: Cross multiply
    230,769.80x = 346,413.90 × 178,411.40
  4. Step 4: Simplify right side
    230,769.80x = 61,804,188,878.46
  5. Step 5: Solve for x
    x = 61,804,188,878.46/230,769.80
  6. Step 6: Final answer
    x = 267,817.49

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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.