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Finding the Fourth Proportional to 343,188.48, 514,240.93 and 278,832.76

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Solution

The fourth proportional to 343,188.48, 514,240.93 and 278,832.76 is: 417,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,188.48 : 514,240.93 = 278,832.76 : x
  2. Step 2: Convert to fraction form
    343,188.48/514,240.93 = 278,832.76/x
  3. Step 3: Cross multiply
    343,188.48x = 514,240.93 × 278,832.76
  4. Step 4: Simplify right side
    343,188.48x = 143,387,217,903.47
  5. Step 5: Solve for x
    x = 143,387,217,903.47/343,188.48
  6. Step 6: Final answer
    x = 417,808.95

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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.