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Finding the Fourth Proportional to 328,961.80, 453,967.23 and 178,058.80

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Solution

The fourth proportional to 328,961.80, 453,967.23 and 178,058.80 is: 245,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,961.80 : 453,967.23 = 178,058.80 : x
  2. Step 2: Convert to fraction form
    328,961.80/453,967.23 = 178,058.80/x
  3. Step 3: Cross multiply
    328,961.80x = 453,967.23 × 178,058.80
  4. Step 4: Simplify right side
    328,961.80x = 80,832,860,213.12
  5. Step 5: Solve for x
    x = 80,832,860,213.12/328,961.80
  6. Step 6: Final answer
    x = 245,721.11

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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.