Home / 385,298.03-531,739.32-215,586.83

Finding the Fourth Proportional to 385,298.03, 531,739.32 and 215,586.83

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Solution

The fourth proportional to 385,298.03, 531,739.32 and 215,586.83 is: 297,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,298.03 : 531,739.32 = 215,586.83 : x
  2. Step 2: Convert to fraction form
    385,298.03/531,739.32 = 215,586.83/x
  3. Step 3: Cross multiply
    385,298.03x = 531,739.32 × 215,586.83
  4. Step 4: Simplify right side
    385,298.03x = 114,635,994,385.16
  5. Step 5: Solve for x
    x = 114,635,994,385.16/385,298.03
  6. Step 6: Final answer
    x = 297,525.51

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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.