Home / 243,776.72-336,409.38-136,346.50

Finding the Fourth Proportional to 243,776.72, 336,409.38 and 136,346.50

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Solution

The fourth proportional to 243,776.72, 336,409.38 and 136,346.50 is: 188,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,776.72 : 336,409.38 = 136,346.50 : x
  2. Step 2: Convert to fraction form
    243,776.72/336,409.38 = 136,346.50/x
  3. Step 3: Cross multiply
    243,776.72x = 336,409.38 × 136,346.50
  4. Step 4: Simplify right side
    243,776.72x = 45,868,241,530.17
  5. Step 5: Solve for x
    x = 45,868,241,530.17/243,776.72
  6. Step 6: Final answer
    x = 188,156.78

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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.