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Finding the Fourth Proportional to 377,347.20, 520,739.14 and 216,295.67

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Solution

The fourth proportional to 377,347.20, 520,739.14 and 216,295.67 is: 298,488.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,347.20 : 520,739.14 = 216,295.67 : x
  2. Step 2: Convert to fraction form
    377,347.20/520,739.14 = 216,295.67/x
  3. Step 3: Cross multiply
    377,347.20x = 520,739.14 × 216,295.67
  4. Step 4: Simplify right side
    377,347.20x = 112,633,619,038.83
  5. Step 5: Solve for x
    x = 112,633,619,038.83/377,347.20
  6. Step 6: Final answer
    x = 298,488.02

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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.