Home / 377,256.32-520,611-207,486.80

Finding the Fourth Proportional to 377,256.32, 520,611 and 207,486.80

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Solution

The fourth proportional to 377,256.32, 520,611 and 207,486.80 is: 286,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,256.32 : 520,611 = 207,486.80 : x
  2. Step 2: Convert to fraction form
    377,256.32/520,611 = 207,486.80/x
  3. Step 3: Cross multiply
    377,256.32x = 520,611 × 207,486.80
  4. Step 4: Simplify right side
    377,256.32x = 108,019,910,434.80
  5. Step 5: Solve for x
    x = 108,019,910,434.80/377,256.32
  6. Step 6: Final answer
    x = 286,330.29

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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.