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Finding the Fourth Proportional to 217,222.48, 299,913.48 and 135,675.28

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Solution

The fourth proportional to 217,222.48, 299,913.48 and 135,675.28 is: 187,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,222.48 : 299,913.48 = 135,675.28 : x
  2. Step 2: Convert to fraction form
    217,222.48/299,913.48 = 135,675.28/x
  3. Step 3: Cross multiply
    217,222.48x = 299,913.48 × 135,675.28
  4. Step 4: Simplify right side
    217,222.48x = 40,690,845,374.77
  5. Step 5: Solve for x
    x = 40,690,845,374.77/217,222.48
  6. Step 6: Final answer
    x = 187,323.36

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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.