Home / 219,069.28-302,362.44-138,445.36

Finding the Fourth Proportional to 219,069.28, 302,362.44 and 138,445.36

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Solution

The fourth proportional to 219,069.28, 302,362.44 and 138,445.36 is: 191,084.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,069.28 : 302,362.44 = 138,445.36 : x
  2. Step 2: Convert to fraction form
    219,069.28/302,362.44 = 138,445.36/x
  3. Step 3: Cross multiply
    219,069.28x = 302,362.44 × 138,445.36
  4. Step 4: Simplify right side
    219,069.28x = 41,860,676,856.28
  5. Step 5: Solve for x
    x = 41,860,676,856.28/219,069.28
  6. Step 6: Final answer
    x = 191,084.19

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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.