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Finding the Fourth Proportional to 243,244.14, 335,492.13 and 209,309.46

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Solution

The fourth proportional to 243,244.14, 335,492.13 and 209,309.46 is: 288,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,244.14 : 335,492.13 = 209,309.46 : x
  2. Step 2: Convert to fraction form
    243,244.14/335,492.13 = 209,309.46/x
  3. Step 3: Cross multiply
    243,244.14x = 335,492.13 × 209,309.46
  4. Step 4: Simplify right side
    243,244.14x = 70,221,676,564.55
  5. Step 5: Solve for x
    x = 70,221,676,564.55/243,244.14
  6. Step 6: Final answer
    x = 288,688.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.