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Finding the Fourth Proportional to 377,438.54, 520,879.52 and 216,324.68

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Solution

The fourth proportional to 377,438.54, 520,879.52 and 216,324.68 is: 298,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,438.54 : 520,879.52 = 216,324.68 : x
  2. Step 2: Convert to fraction form
    377,438.54/520,879.52 = 216,324.68/x
  3. Step 3: Cross multiply
    377,438.54x = 520,879.52 × 216,324.68
  4. Step 4: Simplify right side
    377,438.54x = 112,679,095,482.55
  5. Step 5: Solve for x
    x = 112,679,095,482.55/377,438.54
  6. Step 6: Final answer
    x = 298,536.27

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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.