Home / 245,250.90-338,453.04-137,830.74

Finding the Fourth Proportional to 245,250.90, 338,453.04 and 137,830.74

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Solution

The fourth proportional to 245,250.90, 338,453.04 and 137,830.74 is: 190,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,250.90 : 338,453.04 = 137,830.74 : x
  2. Step 2: Convert to fraction form
    245,250.90/338,453.04 = 137,830.74/x
  3. Step 3: Cross multiply
    245,250.90x = 338,453.04 × 137,830.74
  4. Step 4: Simplify right side
    245,250.90x = 46,649,232,958.45
  5. Step 5: Solve for x
    x = 46,649,232,958.45/245,250.90
  6. Step 6: Final answer
    x = 190,210.24

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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.