Home / 385,255.88-531,616.91-260,823.74

Finding the Fourth Proportional to 385,255.88, 531,616.91 and 260,823.74

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Solution

The fourth proportional to 385,255.88, 531,616.91 and 260,823.74 is: 359,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,255.88 : 531,616.91 = 260,823.74 : x
  2. Step 2: Convert to fraction form
    385,255.88/531,616.91 = 260,823.74/x
  3. Step 3: Cross multiply
    385,255.88x = 531,616.91 × 260,823.74
  4. Step 4: Simplify right side
    385,255.88x = 138,658,306,751.24
  5. Step 5: Solve for x
    x = 138,658,306,751.24/385,255.88
  6. Step 6: Final answer
    x = 359,912.24

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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.