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Finding the Fourth Proportional to 319,607.52, 479,064.48 and 157,613.76

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Solution

The fourth proportional to 319,607.52, 479,064.48 and 157,613.76 is: 236,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,607.52 : 479,064.48 = 157,613.76 : x
  2. Step 2: Convert to fraction form
    319,607.52/479,064.48 = 157,613.76/x
  3. Step 3: Cross multiply
    319,607.52x = 479,064.48 × 157,613.76
  4. Step 4: Simplify right side
    319,607.52x = 75,507,153,975.24
  5. Step 5: Solve for x
    x = 75,507,153,975.24/319,607.52
  6. Step 6: Final answer
    x = 236,249.62

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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.