Home / 245,012.04-338,085.90-137,581.74

Finding the Fourth Proportional to 245,012.04, 338,085.90 and 137,581.74

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Solution

The fourth proportional to 245,012.04, 338,085.90 and 137,581.74 is: 189,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,012.04 : 338,085.90 = 137,581.74 : x
  2. Step 2: Convert to fraction form
    245,012.04/338,085.90 = 137,581.74/x
  3. Step 3: Cross multiply
    245,012.04x = 338,085.90 × 137,581.74
  4. Step 4: Simplify right side
    245,012.04x = 46,514,446,391.47
  5. Step 5: Solve for x
    x = 46,514,446,391.47/245,012.04
  6. Step 6: Final answer
    x = 189,845.55

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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.