Home / 256,918.43-385,518.68-130,569.57

Finding the Fourth Proportional to 256,918.43, 385,518.68 and 130,569.57

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Solution

The fourth proportional to 256,918.43, 385,518.68 and 130,569.57 is: 195,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,918.43 : 385,518.68 = 130,569.57 : x
  2. Step 2: Convert to fraction form
    256,918.43/385,518.68 = 130,569.57/x
  3. Step 3: Cross multiply
    256,918.43x = 385,518.68 × 130,569.57
  4. Step 4: Simplify right side
    256,918.43x = 50,337,007,621.72
  5. Step 5: Solve for x
    x = 50,337,007,621.72/256,918.43
  6. Step 6: Final answer
    x = 195,926.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.