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Finding the Fourth Proportional to 446,713.04, 670,215 and 210,079.28

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Solution

The fourth proportional to 446,713.04, 670,215 and 210,079.28 is: 315,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,713.04 : 670,215 = 210,079.28 : x
  2. Step 2: Convert to fraction form
    446,713.04/670,215 = 210,079.28/x
  3. Step 3: Cross multiply
    446,713.04x = 670,215 × 210,079.28
  4. Step 4: Simplify right side
    446,713.04x = 140,798,284,645.20
  5. Step 5: Solve for x
    x = 140,798,284,645.20/446,713.04
  6. Step 6: Final answer
    x = 315,187.32

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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.