Home / 278,289.76-384,040.60-150,965.35

Finding the Fourth Proportional to 278,289.76, 384,040.60 and 150,965.35

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Solution

The fourth proportional to 278,289.76, 384,040.60 and 150,965.35 is: 208,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,289.76 : 384,040.60 = 150,965.35 : x
  2. Step 2: Convert to fraction form
    278,289.76/384,040.60 = 150,965.35/x
  3. Step 3: Cross multiply
    278,289.76x = 384,040.60 × 150,965.35
  4. Step 4: Simplify right side
    278,289.76x = 57,976,823,541.89
  5. Step 5: Solve for x
    x = 57,976,823,541.89/278,289.76
  6. Step 6: Final answer
    x = 208,332.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.