Home / 345,390.40-476,663.16-192,438.64

Finding the Fourth Proportional to 345,390.40, 476,663.16 and 192,438.64

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Solution

The fourth proportional to 345,390.40, 476,663.16 and 192,438.64 is: 265,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,390.40 : 476,663.16 = 192,438.64 : x
  2. Step 2: Convert to fraction form
    345,390.40/476,663.16 = 192,438.64/x
  3. Step 3: Cross multiply
    345,390.40x = 476,663.16 × 192,438.64
  4. Step 4: Simplify right side
    345,390.40x = 91,728,410,248.50
  5. Step 5: Solve for x
    x = 91,728,410,248.50/345,390.40
  6. Step 6: Final answer
    x = 265,578.92

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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.