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Finding the Fourth Proportional to 144,029.60, 216,044.40 and 141,696.80

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Solution

The fourth proportional to 144,029.60, 216,044.40 and 141,696.80 is: 212,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,029.60 : 216,044.40 = 141,696.80 : x
  2. Step 2: Convert to fraction form
    144,029.60/216,044.40 = 141,696.80/x
  3. Step 3: Cross multiply
    144,029.60x = 216,044.40 × 141,696.80
  4. Step 4: Simplify right side
    144,029.60x = 30,612,800,137.92
  5. Step 5: Solve for x
    x = 30,612,800,137.92/144,029.60
  6. Step 6: Final answer
    x = 212,545.20

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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.