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Finding the Fourth Proportional to 147,897.60, 221,846.40 and 136,492.80

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Solution

The fourth proportional to 147,897.60, 221,846.40 and 136,492.80 is: 204,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,897.60 : 221,846.40 = 136,492.80 : x
  2. Step 2: Convert to fraction form
    147,897.60/221,846.40 = 136,492.80/x
  3. Step 3: Cross multiply
    147,897.60x = 221,846.40 × 136,492.80
  4. Step 4: Simplify right side
    147,897.60x = 30,280,436,305.92
  5. Step 5: Solve for x
    x = 30,280,436,305.92/147,897.60
  6. Step 6: Final answer
    x = 204,739.20

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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.