Home / 285,447.24-393,282.72-188,478.36

Finding the Fourth Proportional to 285,447.24, 393,282.72 and 188,478.36

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Solution

The fourth proportional to 285,447.24, 393,282.72 and 188,478.36 is: 259,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,447.24 : 393,282.72 = 188,478.36 : x
  2. Step 2: Convert to fraction form
    285,447.24/393,282.72 = 188,478.36/x
  3. Step 3: Cross multiply
    285,447.24x = 393,282.72 × 188,478.36
  4. Step 4: Simplify right side
    285,447.24x = 74,125,282,081.94
  5. Step 5: Solve for x
    x = 74,125,282,081.94/285,447.24
  6. Step 6: Final answer
    x = 259,681.20

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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.