Home / 239,434.81-330,420-137,466.82

Finding the Fourth Proportional to 239,434.81, 330,420 and 137,466.82

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Solution

The fourth proportional to 239,434.81, 330,420 and 137,466.82 is: 189,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,434.81 : 330,420 = 137,466.82 : x
  2. Step 2: Convert to fraction form
    239,434.81/330,420 = 137,466.82/x
  3. Step 3: Cross multiply
    239,434.81x = 330,420 × 137,466.82
  4. Step 4: Simplify right side
    239,434.81x = 45,421,786,664.40
  5. Step 5: Solve for x
    x = 45,421,786,664.40/239,434.81
  6. Step 6: Final answer
    x = 189,704.19

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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.