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Finding the Fourth Proportional to 331,113.60, 496,670.40 and 173,390.40

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Solution

The fourth proportional to 331,113.60, 496,670.40 and 173,390.40 is: 260,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,113.60 : 496,670.40 = 173,390.40 : x
  2. Step 2: Convert to fraction form
    331,113.60/496,670.40 = 173,390.40/x
  3. Step 3: Cross multiply
    331,113.60x = 496,670.40 × 173,390.40
  4. Step 4: Simplify right side
    331,113.60x = 86,117,879,324.16
  5. Step 5: Solve for x
    x = 86,117,879,324.16/331,113.60
  6. Step 6: Final answer
    x = 260,085.60

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1.5x scale

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.