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Finding the Fourth Proportional to 377,358.04, 520,758.42 and 216,209.86

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Solution

The fourth proportional to 377,358.04, 520,758.42 and 216,209.86 is: 298,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,358.04 : 520,758.42 = 216,209.86 : x
  2. Step 2: Convert to fraction form
    377,358.04/520,758.42 = 216,209.86/x
  3. Step 3: Cross multiply
    377,358.04x = 520,758.42 × 216,209.86
  4. Step 4: Simplify right side
    377,358.04x = 112,593,102,969.34
  5. Step 5: Solve for x
    x = 112,593,102,969.34/377,358.04
  6. Step 6: Final answer
    x = 298,372.08

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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.