Home / 467,975.90-645,806.04-253,115.30

Finding the Fourth Proportional to 467,975.90, 645,806.04 and 253,115.30

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Solution

The fourth proportional to 467,975.90, 645,806.04 and 253,115.30 is: 349,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,975.90 : 645,806.04 = 253,115.30 : x
  2. Step 2: Convert to fraction form
    467,975.90/645,806.04 = 253,115.30/x
  3. Step 3: Cross multiply
    467,975.90x = 645,806.04 × 253,115.30
  4. Step 4: Simplify right side
    467,975.90x = 163,463,389,556.41
  5. Step 5: Solve for x
    x = 163,463,389,556.41/467,975.90
  6. Step 6: Final answer
    x = 349,298.73

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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.