Home / 377,219.20-520,568.80-216,088.30

Finding the Fourth Proportional to 377,219.20, 520,568.80 and 216,088.30

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Solution

The fourth proportional to 377,219.20, 520,568.80 and 216,088.30 is: 298,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,219.20 : 520,568.80 = 216,088.30 : x
  2. Step 2: Convert to fraction form
    377,219.20/520,568.80 = 216,088.30/x
  3. Step 3: Cross multiply
    377,219.20x = 520,568.80 × 216,088.30
  4. Step 4: Simplify right side
    377,219.20x = 112,488,827,025.04
  5. Step 5: Solve for x
    x = 112,488,827,025.04/377,219.20
  6. Step 6: Final answer
    x = 298,205.47

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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.