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Finding the Fourth Proportional to 148,436.80, 222,460.80 and 131,718.40

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Solution

The fourth proportional to 148,436.80, 222,460.80 and 131,718.40 is: 197,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,436.80 : 222,460.80 = 131,718.40 : x
  2. Step 2: Convert to fraction form
    148,436.80/222,460.80 = 131,718.40/x
  3. Step 3: Cross multiply
    148,436.80x = 222,460.80 × 131,718.40
  4. Step 4: Simplify right side
    148,436.80x = 29,302,180,638.72
  5. Step 5: Solve for x
    x = 29,302,180,638.72/148,436.80
  6. Step 6: Final answer
    x = 197,405.10

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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.