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Finding the Fourth Proportional to 356,349.45, 491,762.37 and 195,210.30

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Solution

The fourth proportional to 356,349.45, 491,762.37 and 195,210.30 is: 269,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,349.45 : 491,762.37 = 195,210.30 : x
  2. Step 2: Convert to fraction form
    356,349.45/491,762.37 = 195,210.30/x
  3. Step 3: Cross multiply
    356,349.45x = 491,762.37 × 195,210.30
  4. Step 4: Simplify right side
    356,349.45x = 95,997,079,776.41
  5. Step 5: Solve for x
    x = 95,997,079,776.41/356,349.45
  6. Step 6: Final answer
    x = 269,390.28

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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.