Home / 245,140.96-338,295.84-137,715.52

Finding the Fourth Proportional to 245,140.96, 338,295.84 and 137,715.52

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Solution

The fourth proportional to 245,140.96, 338,295.84 and 137,715.52 is: 190,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,140.96 : 338,295.84 = 137,715.52 : x
  2. Step 2: Convert to fraction form
    245,140.96/338,295.84 = 137,715.52/x
  3. Step 3: Cross multiply
    245,140.96x = 338,295.84 × 137,715.52
  4. Step 4: Simplify right side
    245,140.96x = 46,588,587,519.44
  5. Step 5: Solve for x
    x = 46,588,587,519.44/245,140.96
  6. Step 6: Final answer
    x = 190,048.16

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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.