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Finding the Fourth Proportional to 270,138.69, 372,813.84 and 149,303.58

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Solution

The fourth proportional to 270,138.69, 372,813.84 and 149,303.58 is: 206,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,138.69 : 372,813.84 = 149,303.58 : x
  2. Step 2: Convert to fraction form
    270,138.69/372,813.84 = 149,303.58/x
  3. Step 3: Cross multiply
    270,138.69x = 372,813.84 × 149,303.58
  4. Step 4: Simplify right side
    270,138.69x = 55,662,440,985.55
  5. Step 5: Solve for x
    x = 55,662,440,985.55/270,138.69
  6. Step 6: Final answer
    x = 206,051.35

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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.