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Finding the Fourth Proportional to 535,245.16, 738,670.98 and 308,905.24

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Solution

The fourth proportional to 535,245.16, 738,670.98 and 308,905.24 is: 426,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,245.16 : 738,670.98 = 308,905.24 : x
  2. Step 2: Convert to fraction form
    535,245.16/738,670.98 = 308,905.24/x
  3. Step 3: Cross multiply
    535,245.16x = 738,670.98 × 308,905.24
  4. Step 4: Simplify right side
    535,245.16x = 228,179,336,357.94
  5. Step 5: Solve for x
    x = 228,179,336,357.94/535,245.16
  6. Step 6: Final answer
    x = 426,308.08

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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.