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Finding the Fourth Proportional to 255,010.80, 381,641.40 and 234,015.60

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Solution

The fourth proportional to 255,010.80, 381,641.40 and 234,015.60 is: 350,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,010.80 : 381,641.40 = 234,015.60 : x
  2. Step 2: Convert to fraction form
    255,010.80/381,641.40 = 234,015.60/x
  3. Step 3: Cross multiply
    255,010.80x = 381,641.40 × 234,015.60
  4. Step 4: Simplify right side
    255,010.80x = 89,310,041,205.84
  5. Step 5: Solve for x
    x = 89,310,041,205.84/255,010.80
  6. Step 6: Final answer
    x = 350,220.62

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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.