Home / 377,471.61-520,895.10-205,390.25

Finding the Fourth Proportional to 377,471.61, 520,895.10 and 205,390.25

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Solution

The fourth proportional to 377,471.61, 520,895.10 and 205,390.25 is: 283,429.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,471.61 : 520,895.10 = 205,390.25 : x
  2. Step 2: Convert to fraction form
    377,471.61/520,895.10 = 205,390.25/x
  3. Step 3: Cross multiply
    377,471.61x = 520,895.10 × 205,390.25
  4. Step 4: Simplify right side
    377,471.61x = 106,986,774,931.87
  5. Step 5: Solve for x
    x = 106,986,774,931.87/377,471.61
  6. Step 6: Final answer
    x = 283,429.99

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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.