Home / 305,747.74-458,154.03-128,157.94

Finding the Fourth Proportional to 305,747.74, 458,154.03 and 128,157.94

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Solution

The fourth proportional to 305,747.74, 458,154.03 and 128,157.94 is: 192,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,747.74 : 458,154.03 = 128,157.94 : x
  2. Step 2: Convert to fraction form
    305,747.74/458,154.03 = 128,157.94/x
  3. Step 3: Cross multiply
    305,747.74x = 458,154.03 × 128,157.94
  4. Step 4: Simplify right side
    305,747.74x = 58,716,076,687.50
  5. Step 5: Solve for x
    x = 58,716,076,687.50/305,747.74
  6. Step 6: Final answer
    x = 192,040.92

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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.