Home / 354,280.88-531,420.60-143,869.52

Finding the Fourth Proportional to 354,280.88, 531,420.60 and 143,869.52

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Solution

The fourth proportional to 354,280.88, 531,420.60 and 143,869.52 is: 215,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,280.88 : 531,420.60 = 143,869.52 : x
  2. Step 2: Convert to fraction form
    354,280.88/531,420.60 = 143,869.52/x
  3. Step 3: Cross multiply
    354,280.88x = 531,420.60 × 143,869.52
  4. Step 4: Simplify right side
    354,280.88x = 76,455,226,640.11
  5. Step 5: Solve for x
    x = 76,455,226,640.11/354,280.88
  6. Step 6: Final answer
    x = 215,803.99

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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.