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Finding the Fourth Proportional to 374,586, 561,879.54 and 152,970

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Solution

The fourth proportional to 374,586, 561,879.54 and 152,970 is: 229,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,586 : 561,879.54 = 152,970 : x
  2. Step 2: Convert to fraction form
    374,586/561,879.54 = 152,970/x
  3. Step 3: Cross multiply
    374,586x = 561,879.54 × 152,970
  4. Step 4: Simplify right side
    374,586x = 85,950,713,233.80
  5. Step 5: Solve for x
    x = 85,950,713,233.80/374,586
  6. Step 6: Final answer
    x = 229,455.22

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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.