Home / 383,064.32-528,623.78-210,979.01

Finding the Fourth Proportional to 383,064.32, 528,623.78 and 210,979.01

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Solution

The fourth proportional to 383,064.32, 528,623.78 and 210,979.01 is: 291,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,064.32 : 528,623.78 = 210,979.01 : x
  2. Step 2: Convert to fraction form
    383,064.32/528,623.78 = 210,979.01/x
  3. Step 3: Cross multiply
    383,064.32x = 528,623.78 × 210,979.01
  4. Step 4: Simplify right side
    383,064.32x = 111,528,522,033.52
  5. Step 5: Solve for x
    x = 111,528,522,033.52/383,064.32
  6. Step 6: Final answer
    x = 291,148.29

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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.