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Finding the Fourth Proportional to 155,280.80, 232,942.80 and 66,533.60

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Solution

The fourth proportional to 155,280.80, 232,942.80 and 66,533.60 is: 99,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,280.80 : 232,942.80 = 66,533.60 : x
  2. Step 2: Convert to fraction form
    155,280.80/232,942.80 = 66,533.60/x
  3. Step 3: Cross multiply
    155,280.80x = 232,942.80 × 66,533.60
  4. Step 4: Simplify right side
    155,280.80x = 15,498,523,078.08
  5. Step 5: Solve for x
    x = 15,498,523,078.08/155,280.80
  6. Step 6: Final answer
    x = 99,809.66

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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.