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Finding the Fourth Proportional to 169,678.80, 254,518.20 and 134,427.60

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Solution

The fourth proportional to 169,678.80, 254,518.20 and 134,427.60 is: 201,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,678.80 : 254,518.20 = 134,427.60 : x
  2. Step 2: Convert to fraction form
    169,678.80/254,518.20 = 134,427.60/x
  3. Step 3: Cross multiply
    169,678.80x = 254,518.20 × 134,427.60
  4. Step 4: Simplify right side
    169,678.80x = 34,214,270,782.32
  5. Step 5: Solve for x
    x = 34,214,270,782.32/169,678.80
  6. Step 6: Final answer
    x = 201,641.40

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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.