Home / 219,109.50-302,371.13-118,507.50

Finding the Fourth Proportional to 219,109.50, 302,371.13 and 118,507.50

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Solution

The fourth proportional to 219,109.50, 302,371.13 and 118,507.50 is: 163,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,109.50 : 302,371.13 = 118,507.50 : x
  2. Step 2: Convert to fraction form
    219,109.50/302,371.13 = 118,507.50/x
  3. Step 3: Cross multiply
    219,109.50x = 302,371.13 × 118,507.50
  4. Step 4: Simplify right side
    219,109.50x = 35,833,246,984.74
  5. Step 5: Solve for x
    x = 35,833,246,984.74/219,109.50
  6. Step 6: Final answer
    x = 163,540.36

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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.