Home / 382,847.12-528,334.08-210,785.12

Finding the Fourth Proportional to 382,847.12, 528,334.08 and 210,785.12

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Solution

The fourth proportional to 382,847.12, 528,334.08 and 210,785.12 is: 290,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,847.12 : 528,334.08 = 210,785.12 : x
  2. Step 2: Convert to fraction form
    382,847.12/528,334.08 = 210,785.12/x
  3. Step 3: Cross multiply
    382,847.12x = 528,334.08 × 210,785.12
  4. Step 4: Simplify right side
    382,847.12x = 111,364,962,452.89
  5. Step 5: Solve for x
    x = 111,364,962,452.89/382,847.12
  6. Step 6: Final answer
    x = 290,886.25

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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.