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Finding the Fourth Proportional to 637,208.64, 955,674.30 and 210,643.68

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Solution

The fourth proportional to 637,208.64, 955,674.30 and 210,643.68 is: 315,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,208.64 : 955,674.30 = 210,643.68 : x
  2. Step 2: Convert to fraction form
    637,208.64/955,674.30 = 210,643.68/x
  3. Step 3: Cross multiply
    637,208.64x = 955,674.30 × 210,643.68
  4. Step 4: Simplify right side
    637,208.64x = 201,306,751,433.42
  5. Step 5: Solve for x
    x = 201,306,751,433.42/637,208.64
  6. Step 6: Final answer
    x = 315,919.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.