Home / 256,756.28-354,317.04-142,031.93

Finding the Fourth Proportional to 256,756.28, 354,317.04 and 142,031.93

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Solution

The fourth proportional to 256,756.28, 354,317.04 and 142,031.93 is: 196,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,756.28 : 354,317.04 = 142,031.93 : x
  2. Step 2: Convert to fraction form
    256,756.28/354,317.04 = 142,031.93/x
  3. Step 3: Cross multiply
    256,756.28x = 354,317.04 × 142,031.93
  4. Step 4: Simplify right side
    256,756.28x = 50,324,333,023.09
  5. Step 5: Solve for x
    x = 50,324,333,023.09/256,756.28
  6. Step 6: Final answer
    x = 196,000.40

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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.