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Finding the Fourth Proportional to 275,987.53, 380,894.53 and 153,492.34

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Solution

The fourth proportional to 275,987.53, 380,894.53 and 153,492.34 is: 211,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,987.53 : 380,894.53 = 153,492.34 : x
  2. Step 2: Convert to fraction form
    275,987.53/380,894.53 = 153,492.34/x
  3. Step 3: Cross multiply
    275,987.53x = 380,894.53 × 153,492.34
  4. Step 4: Simplify right side
    275,987.53x = 58,464,392,702.90
  5. Step 5: Solve for x
    x = 58,464,392,702.90/275,987.53
  6. Step 6: Final answer
    x = 211,837.08

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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.