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Finding the Fourth Proportional to 328,058.30, 491,212.65 and 328,058.30

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Solution

The fourth proportional to 328,058.30, 491,212.65 and 328,058.30 is: 491,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,058.30 : 491,212.65 = 328,058.30 : x
  2. Step 2: Convert to fraction form
    328,058.30/491,212.65 = 328,058.30/x
  3. Step 3: Cross multiply
    328,058.30x = 491,212.65 × 328,058.30
  4. Step 4: Simplify right side
    328,058.30x = 161,146,386,897.50
  5. Step 5: Solve for x
    x = 161,146,386,897.50/328,058.30
  6. Step 6: Final answer
    x = 491,212.65

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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.