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Finding the Fourth Proportional to 347,593.42, 479,895.60 and 266,860.18

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Solution

The fourth proportional to 347,593.42, 479,895.60 and 266,860.18 is: 368,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,593.42 : 479,895.60 = 266,860.18 : x
  2. Step 2: Convert to fraction form
    347,593.42/479,895.60 = 266,860.18/x
  3. Step 3: Cross multiply
    347,593.42x = 479,895.60 × 266,860.18
  4. Step 4: Simplify right side
    347,593.42x = 128,065,026,197.21
  5. Step 5: Solve for x
    x = 128,065,026,197.21/347,593.42
  6. Step 6: Final answer
    x = 368,433.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.