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Finding the Fourth Proportional to 372,435.92, 513,956.56 and 202,669.64

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Solution

The fourth proportional to 372,435.92, 513,956.56 and 202,669.64 is: 279,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,435.92 : 513,956.56 = 202,669.64 : x
  2. Step 2: Convert to fraction form
    372,435.92/513,956.56 = 202,669.64/x
  3. Step 3: Cross multiply
    372,435.92x = 513,956.56 × 202,669.64
  4. Step 4: Simplify right side
    372,435.92x = 104,163,390,990.84
  5. Step 5: Solve for x
    x = 104,163,390,990.84/372,435.92
  6. Step 6: Final answer
    x = 279,681.38

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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.