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Finding the Fourth Proportional to 315,476.11, 435,407.01 and 200,635.02

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Solution

The fourth proportional to 315,476.11, 435,407.01 and 200,635.02 is: 276,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,476.11 : 435,407.01 = 200,635.02 : x
  2. Step 2: Convert to fraction form
    315,476.11/435,407.01 = 200,635.02/x
  3. Step 3: Cross multiply
    315,476.11x = 435,407.01 × 200,635.02
  4. Step 4: Simplify right side
    315,476.11x = 87,357,894,159.49
  5. Step 5: Solve for x
    x = 87,357,894,159.49/315,476.11
  6. Step 6: Final answer
    x = 276,908.12

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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.