Home / 245,223.36-338,427.84-137,798.40

Finding the Fourth Proportional to 245,223.36, 338,427.84 and 137,798.40

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Solution

The fourth proportional to 245,223.36, 338,427.84 and 137,798.40 is: 190,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,223.36 : 338,427.84 = 137,798.40 : x
  2. Step 2: Convert to fraction form
    245,223.36/338,427.84 = 137,798.40/x
  3. Step 3: Cross multiply
    245,223.36x = 338,427.84 × 137,798.40
  4. Step 4: Simplify right side
    245,223.36x = 46,634,814,867.46
  5. Step 5: Solve for x
    x = 46,634,814,867.46/245,223.36
  6. Step 6: Final answer
    x = 190,172.81

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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.