Home / 437,580.30-656,289.45-121,971.90

Finding the Fourth Proportional to 437,580.30, 656,289.45 and 121,971.90

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Solution

The fourth proportional to 437,580.30, 656,289.45 and 121,971.90 is: 182,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,580.30 : 656,289.45 = 121,971.90 : x
  2. Step 2: Convert to fraction form
    437,580.30/656,289.45 = 121,971.90/x
  3. Step 3: Cross multiply
    437,580.30x = 656,289.45 × 121,971.90
  4. Step 4: Simplify right side
    437,580.30x = 80,048,871,166.46
  5. Step 5: Solve for x
    x = 80,048,871,166.46/437,580.30
  6. Step 6: Final answer
    x = 182,935.27

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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.