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Finding the Fourth Proportional to 371,971.80, 557,979.30 and 105,751.80

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Solution

The fourth proportional to 371,971.80, 557,979.30 and 105,751.80 is: 158,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,971.80 : 557,979.30 = 105,751.80 : x
  2. Step 2: Convert to fraction form
    371,971.80/557,979.30 = 105,751.80/x
  3. Step 3: Cross multiply
    371,971.80x = 557,979.30 × 105,751.80
  4. Step 4: Simplify right side
    371,971.80x = 59,007,315,337.74
  5. Step 5: Solve for x
    x = 59,007,315,337.74/371,971.80
  6. Step 6: Final answer
    x = 158,633.84

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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.