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Finding the Fourth Proportional to 154,328.40, 231,492.60 and 91,083.60

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Solution

The fourth proportional to 154,328.40, 231,492.60 and 91,083.60 is: 136,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,328.40 : 231,492.60 = 91,083.60 : x
  2. Step 2: Convert to fraction form
    154,328.40/231,492.60 = 91,083.60/x
  3. Step 3: Cross multiply
    154,328.40x = 231,492.60 × 91,083.60
  4. Step 4: Simplify right side
    154,328.40x = 21,085,179,381.36
  5. Step 5: Solve for x
    x = 21,085,179,381.36/154,328.40
  6. Step 6: Final answer
    x = 136,625.40

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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.