Home / 345,900.46-518,951.14-143,459.44

Finding the Fourth Proportional to 345,900.46, 518,951.14 and 143,459.44

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Solution

The fourth proportional to 345,900.46, 518,951.14 and 143,459.44 is: 215,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,900.46 : 518,951.14 = 143,459.44 : x
  2. Step 2: Convert to fraction form
    345,900.46/518,951.14 = 143,459.44/x
  3. Step 3: Cross multiply
    345,900.46x = 518,951.14 × 143,459.44
  4. Step 4: Simplify right side
    345,900.46x = 74,448,439,931.76
  5. Step 5: Solve for x
    x = 74,448,439,931.76/345,900.46
  6. Step 6: Final answer
    x = 215,230.82

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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.