Home / 245,034.47-338,155.76-137,623.43

Finding the Fourth Proportional to 245,034.47, 338,155.76 and 137,623.43

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Solution

The fourth proportional to 245,034.47, 338,155.76 and 137,623.43 is: 189,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,034.47 : 338,155.76 = 137,623.43 : x
  2. Step 2: Convert to fraction form
    245,034.47/338,155.76 = 137,623.43/x
  3. Step 3: Cross multiply
    245,034.47x = 338,155.76 × 137,623.43
  4. Step 4: Simplify right side
    245,034.47x = 46,538,154,877.34
  5. Step 5: Solve for x
    x = 46,538,154,877.34/245,034.47
  6. Step 6: Final answer
    x = 189,924.93

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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.