Home / 285,478.06-393,973.78-158,154.16

Finding the Fourth Proportional to 285,478.06, 393,973.78 and 158,154.16

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Solution

The fourth proportional to 285,478.06, 393,973.78 and 158,154.16 is: 218,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,478.06 : 393,973.78 = 158,154.16 : x
  2. Step 2: Convert to fraction form
    285,478.06/393,973.78 = 158,154.16/x
  3. Step 3: Cross multiply
    285,478.06x = 393,973.78 × 158,154.16
  4. Step 4: Simplify right side
    285,478.06x = 62,308,590,268.06
  5. Step 5: Solve for x
    x = 62,308,590,268.06/285,478.06
  6. Step 6: Final answer
    x = 218,260.53

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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.