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Finding the Fourth Proportional to 328,632, 453,512.32 and 177,728.96

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Solution

The fourth proportional to 328,632, 453,512.32 and 177,728.96 is: 245,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,632 : 453,512.32 = 177,728.96 : x
  2. Step 2: Convert to fraction form
    328,632/453,512.32 = 177,728.96/x
  3. Step 3: Cross multiply
    328,632x = 453,512.32 × 177,728.96
  4. Step 4: Simplify right side
    328,632x = 80,602,272,980.79
  5. Step 5: Solve for x
    x = 80,602,272,980.79/328,632
  6. Step 6: Final answer
    x = 245,266.05

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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.