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Finding the Fourth Proportional to 169,887.20, 254,830.80 and 161,722.40

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Solution

The fourth proportional to 169,887.20, 254,830.80 and 161,722.40 is: 242,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,887.20 : 254,830.80 = 161,722.40 : x
  2. Step 2: Convert to fraction form
    169,887.20/254,830.80 = 161,722.40/x
  3. Step 3: Cross multiply
    169,887.20x = 254,830.80 × 161,722.40
  4. Step 4: Simplify right side
    169,887.20x = 41,211,848,569.92
  5. Step 5: Solve for x
    x = 41,211,848,569.92/169,887.20
  6. Step 6: Final answer
    x = 242,583.60

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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.