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Finding the Fourth Proportional to 286,570.62, 395,449.32 and 159,238.62

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Solution

The fourth proportional to 286,570.62, 395,449.32 and 159,238.62 is: 219,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,570.62 : 395,449.32 = 159,238.62 : x
  2. Step 2: Convert to fraction form
    286,570.62/395,449.32 = 159,238.62/x
  3. Step 3: Cross multiply
    286,570.62x = 395,449.32 × 159,238.62
  4. Step 4: Simplify right side
    286,570.62x = 62,970,803,996.74
  5. Step 5: Solve for x
    x = 62,970,803,996.74/286,570.62
  6. Step 6: Final answer
    x = 219,739.22

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1.5x scale

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.