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Finding the Fourth Proportional to 265,859.85, 366,918.12 and 151,155.78

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Solution

The fourth proportional to 265,859.85, 366,918.12 and 151,155.78 is: 208,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,859.85 : 366,918.12 = 151,155.78 : x
  2. Step 2: Convert to fraction form
    265,859.85/366,918.12 = 151,155.78/x
  3. Step 3: Cross multiply
    265,859.85x = 366,918.12 × 151,155.78
  4. Step 4: Simplify right side
    265,859.85x = 55,461,794,624.73
  5. Step 5: Solve for x
    x = 55,461,794,624.73/265,859.85
  6. Step 6: Final answer
    x = 208,612.90

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1.5x scale

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.