Home / 277,311.31-415,966.98-90,322.81

Finding the Fourth Proportional to 277,311.31, 415,966.98 and 90,322.81

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Solution

The fourth proportional to 277,311.31, 415,966.98 and 90,322.81 is: 135,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,311.31 : 415,966.98 = 90,322.81 : x
  2. Step 2: Convert to fraction form
    277,311.31/415,966.98 = 90,322.81/x
  3. Step 3: Cross multiply
    277,311.31x = 415,966.98 × 90,322.81
  4. Step 4: Simplify right side
    277,311.31x = 37,571,306,500.81
  5. Step 5: Solve for x
    x = 37,571,306,500.81/277,311.31
  6. Step 6: Final answer
    x = 135,484.22

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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.