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Finding the Fourth Proportional to 172,328.20, 258,492.30 and 153,301.30

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Solution

The fourth proportional to 172,328.20, 258,492.30 and 153,301.30 is: 229,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,328.20 : 258,492.30 = 153,301.30 : x
  2. Step 2: Convert to fraction form
    172,328.20/258,492.30 = 153,301.30/x
  3. Step 3: Cross multiply
    172,328.20x = 258,492.30 × 153,301.30
  4. Step 4: Simplify right side
    172,328.20x = 39,627,205,629.99
  5. Step 5: Solve for x
    x = 39,627,205,629.99/172,328.20
  6. Step 6: Final answer
    x = 229,951.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.