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Finding the Fourth Proportional to 275,492.02, 380,149.74 and 154,646.59

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Solution

The fourth proportional to 275,492.02, 380,149.74 and 154,646.59 is: 213,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,492.02 : 380,149.74 = 154,646.59 : x
  2. Step 2: Convert to fraction form
    275,492.02/380,149.74 = 154,646.59/x
  3. Step 3: Cross multiply
    275,492.02x = 380,149.74 × 154,646.59
  4. Step 4: Simplify right side
    275,492.02x = 58,788,860,980.39
  5. Step 5: Solve for x
    x = 58,788,860,980.39/275,492.02
  6. Step 6: Final answer
    x = 213,395.88

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1.5x scale

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.