Home / 219,492.30-302,883.66-128,851.95

Finding the Fourth Proportional to 219,492.30, 302,883.66 and 128,851.95

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Solution

The fourth proportional to 219,492.30, 302,883.66 and 128,851.95 is: 177,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,492.30 : 302,883.66 = 128,851.95 : x
  2. Step 2: Convert to fraction form
    219,492.30/302,883.66 = 128,851.95/x
  3. Step 3: Cross multiply
    219,492.30x = 302,883.66 × 128,851.95
  4. Step 4: Simplify right side
    219,492.30x = 39,027,150,214.14
  5. Step 5: Solve for x
    x = 39,027,150,214.14/219,492.30
  6. Step 6: Final answer
    x = 177,806.47

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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.