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Finding the Fourth Proportional to 144,985.20, 217,477.80 and 102,994.80

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Solution

The fourth proportional to 144,985.20, 217,477.80 and 102,994.80 is: 154,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,985.20 : 217,477.80 = 102,994.80 : x
  2. Step 2: Convert to fraction form
    144,985.20/217,477.80 = 102,994.80/x
  3. Step 3: Cross multiply
    144,985.20x = 217,477.80 × 102,994.80
  4. Step 4: Simplify right side
    144,985.20x = 22,399,082,515.44
  5. Step 5: Solve for x
    x = 22,399,082,515.44/144,985.20
  6. Step 6: Final answer
    x = 154,492.20

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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.