Home / 385,433.04-531,912.51-215,663.52

Finding the Fourth Proportional to 385,433.04, 531,912.51 and 215,663.52

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Solution

The fourth proportional to 385,433.04, 531,912.51 and 215,663.52 is: 297,624.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,433.04 : 531,912.51 = 215,663.52 : x
  2. Step 2: Convert to fraction form
    385,433.04/531,912.51 = 215,663.52/x
  3. Step 3: Cross multiply
    385,433.04x = 531,912.51 × 215,663.52
  4. Step 4: Simplify right side
    385,433.04x = 114,714,124,238.64
  5. Step 5: Solve for x
    x = 114,714,124,238.64/385,433.04
  6. Step 6: Final answer
    x = 297,624.00

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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.