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Finding the Fourth Proportional to 455,357.68, 628,335.64 and 254,162.16

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Solution

The fourth proportional to 455,357.68, 628,335.64 and 254,162.16 is: 350,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,357.68 : 628,335.64 = 254,162.16 : x
  2. Step 2: Convert to fraction form
    455,357.68/628,335.64 = 254,162.16/x
  3. Step 3: Cross multiply
    455,357.68x = 628,335.64 × 254,162.16
  4. Step 4: Simplify right side
    455,357.68x = 159,699,143,467.38
  5. Step 5: Solve for x
    x = 159,699,143,467.38/455,357.68
  6. Step 6: Final answer
    x = 350,711.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.