Home / 226,688.40-312,705.72-140,617.62

Finding the Fourth Proportional to 226,688.40, 312,705.72 and 140,617.62

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Solution

The fourth proportional to 226,688.40, 312,705.72 and 140,617.62 is: 193,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,688.40 : 312,705.72 = 140,617.62 : x
  2. Step 2: Convert to fraction form
    226,688.40/312,705.72 = 140,617.62/x
  3. Step 3: Cross multiply
    226,688.40x = 312,705.72 × 140,617.62
  4. Step 4: Simplify right side
    226,688.40x = 43,971,934,106.79
  5. Step 5: Solve for x
    x = 43,971,934,106.79/226,688.40
  6. Step 6: Final answer
    x = 193,975.23

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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.