Home / 437,940.18-657,208.35-157,485.78

Finding the Fourth Proportional to 437,940.18, 657,208.35 and 157,485.78

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Solution

The fourth proportional to 437,940.18, 657,208.35 and 157,485.78 is: 236,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,940.18 : 657,208.35 = 157,485.78 : x
  2. Step 2: Convert to fraction form
    437,940.18/657,208.35 = 157,485.78/x
  3. Step 3: Cross multiply
    437,940.18x = 657,208.35 × 157,485.78
  4. Step 4: Simplify right side
    437,940.18x = 103,500,969,622.26
  5. Step 5: Solve for x
    x = 103,500,969,622.26/437,940.18
  6. Step 6: Final answer
    x = 236,335.86

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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.