Home / 245,246.24-338,448.72-137,818.40

Finding the Fourth Proportional to 245,246.24, 338,448.72 and 137,818.40

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Solution

The fourth proportional to 245,246.24, 338,448.72 and 137,818.40 is: 190,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,246.24 : 338,448.72 = 137,818.40 : x
  2. Step 2: Convert to fraction form
    245,246.24/338,448.72 = 137,818.40/x
  3. Step 3: Cross multiply
    245,246.24x = 338,448.72 × 137,818.40
  4. Step 4: Simplify right side
    245,246.24x = 46,644,461,072.45
  5. Step 5: Solve for x
    x = 46,644,461,072.45/245,246.24
  6. Step 6: Final answer
    x = 190,194.40

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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.