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Finding the Fourth Proportional to 153,921.45, 214,965.15 and 153,921.45

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Solution

The fourth proportional to 153,921.45, 214,965.15 and 153,921.45 is: 214,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,921.45 : 214,965.15 = 153,921.45 : x
  2. Step 2: Convert to fraction form
    153,921.45/214,965.15 = 153,921.45/x
  3. Step 3: Cross multiply
    153,921.45x = 214,965.15 × 153,921.45
  4. Step 4: Simplify right side
    153,921.45x = 33,087,747,587.47
  5. Step 5: Solve for x
    x = 33,087,747,587.47/153,921.45
  6. Step 6: Final answer
    x = 214,965.15

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.