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Finding the Fourth Proportional to 439,490.64, 659,261.70 and 169,620.24

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Solution

The fourth proportional to 439,490.64, 659,261.70 and 169,620.24 is: 254,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,490.64 : 659,261.70 = 169,620.24 : x
  2. Step 2: Convert to fraction form
    439,490.64/659,261.70 = 169,620.24/x
  3. Step 3: Cross multiply
    439,490.64x = 659,261.70 × 169,620.24
  4. Step 4: Simplify right side
    439,490.64x = 111,824,127,776.81
  5. Step 5: Solve for x
    x = 111,824,127,776.81/439,490.64
  6. Step 6: Final answer
    x = 254,440.29

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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.