Home / 217,126.34-299,548.10-135,406.52

Finding the Fourth Proportional to 217,126.34, 299,548.10 and 135,406.52

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Solution

The fourth proportional to 217,126.34, 299,548.10 and 135,406.52 is: 186,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,126.34 : 299,548.10 = 135,406.52 : x
  2. Step 2: Convert to fraction form
    217,126.34/299,548.10 = 135,406.52/x
  3. Step 3: Cross multiply
    217,126.34x = 299,548.10 × 135,406.52
  4. Step 4: Simplify right side
    217,126.34x = 40,560,765,793.61
  5. Step 5: Solve for x
    x = 40,560,765,793.61/217,126.34
  6. Step 6: Final answer
    x = 186,807.21

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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.