Home / 285,386.57-393,828.63-158,059.43

Finding the Fourth Proportional to 285,386.57, 393,828.63 and 158,059.43

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Solution

The fourth proportional to 285,386.57, 393,828.63 and 158,059.43 is: 218,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,386.57 : 393,828.63 = 158,059.43 : x
  2. Step 2: Convert to fraction form
    285,386.57/393,828.63 = 158,059.43/x
  3. Step 3: Cross multiply
    285,386.57x = 393,828.63 × 158,059.43
  4. Step 4: Simplify right side
    285,386.57x = 62,248,326,806.34
  5. Step 5: Solve for x
    x = 62,248,326,806.34/285,386.57
  6. Step 6: Final answer
    x = 218,119.33

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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.