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Finding the Fourth Proportional to 343,415.20, 514,882.80 and 203,101.60

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Solution

The fourth proportional to 343,415.20, 514,882.80 and 203,101.60 is: 304,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,415.20 : 514,882.80 = 203,101.60 : x
  2. Step 2: Convert to fraction form
    343,415.20/514,882.80 = 203,101.60/x
  3. Step 3: Cross multiply
    343,415.20x = 514,882.80 × 203,101.60
  4. Step 4: Simplify right side
    343,415.20x = 104,573,520,492.48
  5. Step 5: Solve for x
    x = 104,573,520,492.48/343,415.20
  6. Step 6: Final answer
    x = 304,510.46

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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.