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Finding the Fourth Proportional to 381,888.60, 572,055.30 and 195,005.40

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Solution

The fourth proportional to 381,888.60, 572,055.30 and 195,005.40 is: 292,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,888.60 : 572,055.30 = 195,005.40 : x
  2. Step 2: Convert to fraction form
    381,888.60/572,055.30 = 195,005.40/x
  3. Step 3: Cross multiply
    381,888.60x = 572,055.30 × 195,005.40
  4. Step 4: Simplify right side
    381,888.60x = 111,553,872,598.62
  5. Step 5: Solve for x
    x = 111,553,872,598.62/381,888.60
  6. Step 6: Final answer
    x = 292,111.03

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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.