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Finding the Fourth Proportional to 377,218.32, 520,567.59 and 216,087.42

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Solution

The fourth proportional to 377,218.32, 520,567.59 and 216,087.42 is: 298,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,218.32 : 520,567.59 = 216,087.42 : x
  2. Step 2: Convert to fraction form
    377,218.32/520,567.59 = 216,087.42/x
  3. Step 3: Cross multiply
    377,218.32x = 520,567.59 × 216,087.42
  4. Step 4: Simplify right side
    377,218.32x = 112,488,107,458.72
  5. Step 5: Solve for x
    x = 112,488,107,458.72/377,218.32
  6. Step 6: Final answer
    x = 298,204.25

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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.