Home / 251,709.12-347,359.68-144,285.36

Finding the Fourth Proportional to 251,709.12, 347,359.68 and 144,285.36

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Solution

The fourth proportional to 251,709.12, 347,359.68 and 144,285.36 is: 199,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,709.12 : 347,359.68 = 144,285.36 : x
  2. Step 2: Convert to fraction form
    251,709.12/347,359.68 = 144,285.36/x
  3. Step 3: Cross multiply
    251,709.12x = 347,359.68 × 144,285.36
  4. Step 4: Simplify right side
    251,709.12x = 50,118,916,478.28
  5. Step 5: Solve for x
    x = 50,118,916,478.28/251,709.12
  6. Step 6: Final answer
    x = 199,114.42

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1.5x scale

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.