Home / 426,499.02-639,838.75-160,261.84

Finding the Fourth Proportional to 426,499.02, 639,838.75 and 160,261.84

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Solution

The fourth proportional to 426,499.02, 639,838.75 and 160,261.84 is: 240,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,499.02 : 639,838.75 = 160,261.84 : x
  2. Step 2: Convert to fraction form
    426,499.02/639,838.75 = 160,261.84/x
  3. Step 3: Cross multiply
    426,499.02x = 639,838.75 × 160,261.84
  4. Step 4: Simplify right side
    426,499.02x = 102,541,735,378.30
  5. Step 5: Solve for x
    x = 102,541,735,378.30/426,499.02
  6. Step 6: Final answer
    x = 240,426.66

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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.