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Finding the Fourth Proportional to 299,630.07, 413,501.66 and 172,305.66

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Solution

The fourth proportional to 299,630.07, 413,501.66 and 172,305.66 is: 237,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,630.07 : 413,501.66 = 172,305.66 : x
  2. Step 2: Convert to fraction form
    299,630.07/413,501.66 = 172,305.66/x
  3. Step 3: Cross multiply
    299,630.07x = 413,501.66 × 172,305.66
  4. Step 4: Simplify right side
    299,630.07x = 71,248,675,575.87
  5. Step 5: Solve for x
    x = 71,248,675,575.87/299,630.07
  6. Step 6: Final answer
    x = 237,788.80

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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.