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Finding the Fourth Proportional to 371,570.72, 557,346.36 and 131,681.12

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Solution

The fourth proportional to 371,570.72, 557,346.36 and 131,681.12 is: 197,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,570.72 : 557,346.36 = 131,681.12 : x
  2. Step 2: Convert to fraction form
    371,570.72/557,346.36 = 131,681.12/x
  3. Step 3: Cross multiply
    371,570.72x = 557,346.36 × 131,681.12
  4. Step 4: Simplify right side
    371,570.72x = 73,391,992,912.72
  5. Step 5: Solve for x
    x = 73,391,992,912.72/371,570.72
  6. Step 6: Final answer
    x = 197,518.24

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1.5x scale

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.