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Finding the Fourth Proportional to 168,797.40, 253,209.47 and 56,478.21

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Solution

The fourth proportional to 168,797.40, 253,209.47 and 56,478.21 is: 84,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,797.40 : 253,209.47 = 56,478.21 : x
  2. Step 2: Convert to fraction form
    168,797.40/253,209.47 = 56,478.21/x
  3. Step 3: Cross multiply
    168,797.40x = 253,209.47 × 56,478.21
  4. Step 4: Simplify right side
    168,797.40x = 14,300,817,338.26
  5. Step 5: Solve for x
    x = 14,300,817,338.26/168,797.40
  6. Step 6: Final answer
    x = 84,721.79

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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.