Home / 245,114.76-338,245.38-137,689.32

Finding the Fourth Proportional to 245,114.76, 338,245.38 and 137,689.32

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Solution

The fourth proportional to 245,114.76, 338,245.38 and 137,689.32 is: 190,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,114.76 : 338,245.38 = 137,689.32 : x
  2. Step 2: Convert to fraction form
    245,114.76/338,245.38 = 137,689.32/x
  3. Step 3: Cross multiply
    245,114.76x = 338,245.38 × 137,689.32
  4. Step 4: Simplify right side
    245,114.76x = 46,572,776,365.34
  5. Step 5: Solve for x
    x = 46,572,776,365.34/245,114.76
  6. Step 6: Final answer
    x = 190,003.97

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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.