Home / 385,027.85-531,339.62-215,261.98

Finding the Fourth Proportional to 385,027.85, 531,339.62 and 215,261.98

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Solution

The fourth proportional to 385,027.85, 531,339.62 and 215,261.98 is: 297,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,027.85 : 531,339.62 = 215,261.98 : x
  2. Step 2: Convert to fraction form
    385,027.85/531,339.62 = 215,261.98/x
  3. Step 3: Cross multiply
    385,027.85x = 531,339.62 × 215,261.98
  4. Step 4: Simplify right side
    385,027.85x = 114,377,216,248.99
  5. Step 5: Solve for x
    x = 114,377,216,248.99/385,027.85
  6. Step 6: Final answer
    x = 297,062.19

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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.