Home / 219,455.92-302,979.69-138,952.45

Finding the Fourth Proportional to 219,455.92, 302,979.69 and 138,952.45

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Solution

The fourth proportional to 219,455.92, 302,979.69 and 138,952.45 is: 191,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,455.92 : 302,979.69 = 138,952.45 : x
  2. Step 2: Convert to fraction form
    219,455.92/302,979.69 = 138,952.45/x
  3. Step 3: Cross multiply
    219,455.92x = 302,979.69 × 138,952.45
  4. Step 4: Simplify right side
    219,455.92x = 42,099,770,225.74
  5. Step 5: Solve for x
    x = 42,099,770,225.74/219,455.92
  6. Step 6: Final answer
    x = 191,837.02

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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.