Home / 245,369.83-338,622.38-137,973.55

Finding the Fourth Proportional to 245,369.83, 338,622.38 and 137,973.55

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Solution

The fourth proportional to 245,369.83, 338,622.38 and 137,973.55 is: 190,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.83 : 338,622.38 = 137,973.55 : x
  2. Step 2: Convert to fraction form
    245,369.83/338,622.38 = 137,973.55/x
  3. Step 3: Cross multiply
    245,369.83x = 338,622.38 × 137,973.55
  4. Step 4: Simplify right side
    245,369.83x = 46,720,931,878.05
  5. Step 5: Solve for x
    x = 46,720,931,878.05/245,369.83
  6. Step 6: Final answer
    x = 190,410.25

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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.