Home / 371,785.12-513,066.54-202,019.25

Finding the Fourth Proportional to 371,785.12, 513,066.54 and 202,019.25

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Solution

The fourth proportional to 371,785.12, 513,066.54 and 202,019.25 is: 278,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,785.12 : 513,066.54 = 202,019.25 : x
  2. Step 2: Convert to fraction form
    371,785.12/513,066.54 = 202,019.25/x
  3. Step 3: Cross multiply
    371,785.12x = 513,066.54 × 202,019.25
  4. Step 4: Simplify right side
    371,785.12x = 103,649,315,045.56
  5. Step 5: Solve for x
    x = 103,649,315,045.56/371,785.12
  6. Step 6: Final answer
    x = 278,788.23

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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.