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Finding the Fourth Proportional to 505,421.97, 758,080.90 and 168,426.19

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Solution

The fourth proportional to 505,421.97, 758,080.90 and 168,426.19 is: 252,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,421.97 : 758,080.90 = 168,426.19 : x
  2. Step 2: Convert to fraction form
    505,421.97/758,080.90 = 168,426.19/x
  3. Step 3: Cross multiply
    505,421.97x = 758,080.90 × 168,426.19
  4. Step 4: Simplify right side
    505,421.97x = 127,680,677,698.77
  5. Step 5: Solve for x
    x = 127,680,677,698.77/505,421.97
  6. Step 6: Final answer
    x = 252,621.94

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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.