Home / 257,033.89-354,717.85-142,312.53

Finding the Fourth Proportional to 257,033.89, 354,717.85 and 142,312.53

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Solution

The fourth proportional to 257,033.89, 354,717.85 and 142,312.53 is: 196,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,033.89 : 354,717.85 = 142,312.53 : x
  2. Step 2: Convert to fraction form
    257,033.89/354,717.85 = 142,312.53/x
  3. Step 3: Cross multiply
    257,033.89x = 354,717.85 × 142,312.53
  4. Step 4: Simplify right side
    257,033.89x = 50,480,793,915.62
  5. Step 5: Solve for x
    x = 50,480,793,915.62/257,033.89
  6. Step 6: Final answer
    x = 196,397.43

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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.