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Finding the Fourth Proportional to 305,613.88, 458,316.99 and 105,887.63

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Solution

The fourth proportional to 305,613.88, 458,316.99 and 105,887.63 is: 158,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,613.88 : 458,316.99 = 105,887.63 : x
  2. Step 2: Convert to fraction form
    305,613.88/458,316.99 = 105,887.63/x
  3. Step 3: Cross multiply
    305,613.88x = 458,316.99 × 105,887.63
  4. Step 4: Simplify right side
    305,613.88x = 48,530,099,859.83
  5. Step 5: Solve for x
    x = 48,530,099,859.83/305,613.88
  6. Step 6: Final answer
    x = 158,795.47

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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.