Home / 245,005.60-338,084.20-137,551

Finding the Fourth Proportional to 245,005.60, 338,084.20 and 137,551

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Solution

The fourth proportional to 245,005.60, 338,084.20 and 137,551 is: 189,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,005.60 : 338,084.20 = 137,551 : x
  2. Step 2: Convert to fraction form
    245,005.60/338,084.20 = 137,551/x
  3. Step 3: Cross multiply
    245,005.60x = 338,084.20 × 137,551
  4. Step 4: Simplify right side
    245,005.60x = 46,503,819,794.20
  5. Step 5: Solve for x
    x = 46,503,819,794.20/245,005.60
  6. Step 6: Final answer
    x = 189,807.17

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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.