Home / 314,919.40-472,436.70-127,949.80

Finding the Fourth Proportional to 314,919.40, 472,436.70 and 127,949.80

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Solution

The fourth proportional to 314,919.40, 472,436.70 and 127,949.80 is: 191,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,919.40 : 472,436.70 = 127,949.80 : x
  2. Step 2: Convert to fraction form
    314,919.40/472,436.70 = 127,949.80/x
  3. Step 3: Cross multiply
    314,919.40x = 472,436.70 × 127,949.80
  4. Step 4: Simplify right side
    314,919.40x = 60,448,181,277.66
  5. Step 5: Solve for x
    x = 60,448,181,277.66/314,919.40
  6. Step 6: Final answer
    x = 191,948.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.