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Finding the Fourth Proportional to 377,062.60, 520,344.08 and 213,718.32

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Solution

The fourth proportional to 377,062.60, 520,344.08 and 213,718.32 is: 294,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,062.60 : 520,344.08 = 213,718.32 : x
  2. Step 2: Convert to fraction form
    377,062.60/520,344.08 = 213,718.32/x
  3. Step 3: Cross multiply
    377,062.60x = 520,344.08 × 213,718.32
  4. Step 4: Simplify right side
    377,062.60x = 111,207,062,599.55
  5. Step 5: Solve for x
    x = 111,207,062,599.55/377,062.60
  6. Step 6: Final answer
    x = 294,929.97

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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.