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Finding the Fourth Proportional to 331,330.55, 497,255.03 and 153,859.55

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Solution

The fourth proportional to 331,330.55, 497,255.03 and 153,859.55 is: 230,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,330.55 : 497,255.03 = 153,859.55 : x
  2. Step 2: Convert to fraction form
    331,330.55/497,255.03 = 153,859.55/x
  3. Step 3: Cross multiply
    331,330.55x = 497,255.03 × 153,859.55
  4. Step 4: Simplify right side
    331,330.55x = 76,507,434,381.74
  5. Step 5: Solve for x
    x = 76,507,434,381.74/331,330.55
  6. Step 6: Final answer
    x = 230,909.69

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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.