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Finding the Fourth Proportional to 247,075.80, 370,613.70 and 80,880.60

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Solution

The fourth proportional to 247,075.80, 370,613.70 and 80,880.60 is: 121,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,075.80 : 370,613.70 = 80,880.60 : x
  2. Step 2: Convert to fraction form
    247,075.80/370,613.70 = 80,880.60/x
  3. Step 3: Cross multiply
    247,075.80x = 370,613.70 × 80,880.60
  4. Step 4: Simplify right side
    247,075.80x = 29,975,458,424.22
  5. Step 5: Solve for x
    x = 29,975,458,424.22/247,075.80
  6. Step 6: Final answer
    x = 121,320.90

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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.