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Finding the Fourth Proportional to 382,973.88, 528,499.50 and 210,888.27

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Solution

The fourth proportional to 382,973.88, 528,499.50 and 210,888.27 is: 291,023.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,973.88 : 528,499.50 = 210,888.27 : x
  2. Step 2: Convert to fraction form
    382,973.88/528,499.50 = 210,888.27/x
  3. Step 3: Cross multiply
    382,973.88x = 528,499.50 × 210,888.27
  4. Step 4: Simplify right side
    382,973.88x = 111,454,345,250.87
  5. Step 5: Solve for x
    x = 111,454,345,250.87/382,973.88
  6. Step 6: Final answer
    x = 291,023.36

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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.