Home / 243,688.68-336,289.50-136,258.38

Finding the Fourth Proportional to 243,688.68, 336,289.50 and 136,258.38

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Solution

The fourth proportional to 243,688.68, 336,289.50 and 136,258.38 is: 188,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,688.68 : 336,289.50 = 136,258.38 : x
  2. Step 2: Convert to fraction form
    243,688.68/336,289.50 = 136,258.38/x
  3. Step 3: Cross multiply
    243,688.68x = 336,289.50 × 136,258.38
  4. Step 4: Simplify right side
    243,688.68x = 45,822,262,481.01
  5. Step 5: Solve for x
    x = 45,822,262,481.01/243,688.68
  6. Step 6: Final answer
    x = 188,036.07

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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.