Home / 245,368.83-338,621.00-137,972.55

Finding the Fourth Proportional to 245,368.83, 338,621.00 and 137,972.55

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Solution

The fourth proportional to 245,368.83, 338,621.00 and 137,972.55 is: 190,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,368.83 : 338,621.00 = 137,972.55 : x
  2. Step 2: Convert to fraction form
    245,368.83/338,621.00 = 137,972.55/x
  3. Step 3: Cross multiply
    245,368.83x = 338,621.00 × 137,972.55
  4. Step 4: Simplify right side
    245,368.83x = 46,720,402,163.69
  5. Step 5: Solve for x
    x = 46,720,402,163.69/245,368.83
  6. Step 6: Final answer
    x = 190,408.87

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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.