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Finding the Fourth Proportional to 571,010.18, 856,449 and 150,318.86

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Solution

The fourth proportional to 571,010.18, 856,449 and 150,318.86 is: 225,460.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,010.18 : 856,449 = 150,318.86 : x
  2. Step 2: Convert to fraction form
    571,010.18/856,449 = 150,318.86/x
  3. Step 3: Cross multiply
    571,010.18x = 856,449 × 150,318.86
  4. Step 4: Simplify right side
    571,010.18x = 128,740,437,328.14
  5. Step 5: Solve for x
    x = 128,740,437,328.14/571,010.18
  6. Step 6: Final answer
    x = 225,460.84

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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.