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Finding the Fourth Proportional to 328,490.32, 453,316.74 and 177,587.32

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Solution

The fourth proportional to 328,490.32, 453,316.74 and 177,587.32 is: 245,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,490.32 : 453,316.74 = 177,587.32 : x
  2. Step 2: Convert to fraction form
    328,490.32/453,316.74 = 177,587.32/x
  3. Step 3: Cross multiply
    328,490.32x = 453,316.74 × 177,587.32
  4. Step 4: Simplify right side
    328,490.32x = 80,503,304,967.74
  5. Step 5: Solve for x
    x = 80,503,304,967.74/328,490.32
  6. Step 6: Final answer
    x = 245,070.55

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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.