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Finding the Fourth Proportional to 213,157.21, 294,157.01 and 117,663.97

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Solution

The fourth proportional to 213,157.21, 294,157.01 and 117,663.97 is: 162,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,157.21 : 294,157.01 = 117,663.97 : x
  2. Step 2: Convert to fraction form
    213,157.21/294,157.01 = 117,663.97/x
  3. Step 3: Cross multiply
    213,157.21x = 294,157.01 × 117,663.97
  4. Step 4: Simplify right side
    213,157.21x = 34,611,681,011.61
  5. Step 5: Solve for x
    x = 34,611,681,011.61/213,157.21
  6. Step 6: Final answer
    x = 162,376.31

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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.