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Finding the Fourth Proportional to 382,759.87, 528,204.47 and 210,674.16

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Solution

The fourth proportional to 382,759.87, 528,204.47 and 210,674.16 is: 290,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,759.87 : 528,204.47 = 210,674.16 : x
  2. Step 2: Convert to fraction form
    382,759.87/528,204.47 = 210,674.16/x
  3. Step 3: Cross multiply
    382,759.87x = 528,204.47 × 210,674.16
  4. Step 4: Simplify right side
    382,759.87x = 111,279,031,079.07
  5. Step 5: Solve for x
    x = 111,279,031,079.07/382,759.87
  6. Step 6: Final answer
    x = 290,728.05

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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.