Home / 354,224.61-531,139.77-143,616.51

Finding the Fourth Proportional to 354,224.61, 531,139.77 and 143,616.51

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Solution

The fourth proportional to 354,224.61, 531,139.77 and 143,616.51 is: 215,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,224.61 : 531,139.77 = 143,616.51 : x
  2. Step 2: Convert to fraction form
    354,224.61/531,139.77 = 143,616.51/x
  3. Step 3: Cross multiply
    354,224.61x = 531,139.77 × 143,616.51
  4. Step 4: Simplify right side
    354,224.61x = 76,280,440,089.60
  5. Step 5: Solve for x
    x = 76,280,440,089.60/354,224.61
  6. Step 6: Final answer
    x = 215,344.83

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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.