Home / 245,318.04-338,548.48-137,887.74

Finding the Fourth Proportional to 245,318.04, 338,548.48 and 137,887.74

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Solution

The fourth proportional to 245,318.04, 338,548.48 and 137,887.74 is: 190,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,318.04 : 338,548.48 = 137,887.74 : x
  2. Step 2: Convert to fraction form
    245,318.04/338,548.48 = 137,887.74/x
  3. Step 3: Cross multiply
    245,318.04x = 338,548.48 × 137,887.74
  4. Step 4: Simplify right side
    245,318.04x = 46,681,684,787.64
  5. Step 5: Solve for x
    x = 46,681,684,787.64/245,318.04
  6. Step 6: Final answer
    x = 190,290.47

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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.