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Finding the Fourth Proportional to 295,420.66, 443,130.99 and 235,978

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Solution

The fourth proportional to 295,420.66, 443,130.99 and 235,978 is: 353,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,420.66 : 443,130.99 = 235,978 : x
  2. Step 2: Convert to fraction form
    295,420.66/443,130.99 = 235,978/x
  3. Step 3: Cross multiply
    295,420.66x = 443,130.99 × 235,978
  4. Step 4: Simplify right side
    295,420.66x = 104,569,164,758.22
  5. Step 5: Solve for x
    x = 104,569,164,758.22/295,420.66
  6. Step 6: Final answer
    x = 353,967.00

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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.