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Finding the Fourth Proportional to 349,794.40, 524,740.44 and 172,302.88

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Solution

The fourth proportional to 349,794.40, 524,740.44 and 172,302.88 is: 258,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,794.40 : 524,740.44 = 172,302.88 : x
  2. Step 2: Convert to fraction form
    349,794.40/524,740.44 = 172,302.88/x
  3. Step 3: Cross multiply
    349,794.40x = 524,740.44 × 172,302.88
  4. Step 4: Simplify right side
    349,794.40x = 90,414,289,064.47
  5. Step 5: Solve for x
    x = 90,414,289,064.47/349,794.40
  6. Step 6: Final answer
    x = 258,478.38

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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.