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Finding the Fourth Proportional to 509,339.40, 763,134.30 and 242,525.40

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Solution

The fourth proportional to 509,339.40, 763,134.30 and 242,525.40 is: 363,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,339.40 : 763,134.30 = 242,525.40 : x
  2. Step 2: Convert to fraction form
    509,339.40/763,134.30 = 242,525.40/x
  3. Step 3: Cross multiply
    509,339.40x = 763,134.30 × 242,525.40
  4. Step 4: Simplify right side
    509,339.40x = 185,079,451,361.22
  5. Step 5: Solve for x
    x = 185,079,451,361.22/509,339.40
  6. Step 6: Final answer
    x = 363,371.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.