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Finding the Fourth Proportional to 270,197.80, 405,225.18 and 80,613.16

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Solution

The fourth proportional to 270,197.80, 405,225.18 and 80,613.16 is: 120,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,197.80 : 405,225.18 = 80,613.16 : x
  2. Step 2: Convert to fraction form
    270,197.80/405,225.18 = 80,613.16/x
  3. Step 3: Cross multiply
    270,197.80x = 405,225.18 × 80,613.16
  4. Step 4: Simplify right side
    270,197.80x = 32,666,482,271.37
  5. Step 5: Solve for x
    x = 32,666,482,271.37/270,197.80
  6. Step 6: Final answer
    x = 120,898.40

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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.