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Finding the Fourth Proportional to 356,054.60, 534,081.90 and 169,430.60

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Solution

The fourth proportional to 356,054.60, 534,081.90 and 169,430.60 is: 254,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,054.60 : 534,081.90 = 169,430.60 : x
  2. Step 2: Convert to fraction form
    356,054.60/534,081.90 = 169,430.60/x
  3. Step 3: Cross multiply
    356,054.60x = 534,081.90 × 169,430.60
  4. Step 4: Simplify right side
    356,054.60x = 90,489,816,766.14
  5. Step 5: Solve for x
    x = 90,489,816,766.14/356,054.60
  6. Step 6: Final answer
    x = 254,145.90

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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.