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Finding the Fourth Proportional to 306,939.42, 459,796.77 and 243,866.34

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Solution

The fourth proportional to 306,939.42, 459,796.77 and 243,866.34 is: 365,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,939.42 : 459,796.77 = 243,866.34 : x
  2. Step 2: Convert to fraction form
    306,939.42/459,796.77 = 243,866.34/x
  3. Step 3: Cross multiply
    306,939.42x = 459,796.77 × 243,866.34
  4. Step 4: Simplify right side
    306,939.42x = 112,128,955,443.72
  5. Step 5: Solve for x
    x = 112,128,955,443.72/306,939.42
  6. Step 6: Final answer
    x = 365,312.98

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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.