Home / 257,827.98-355,824.05-143,117.40

Finding the Fourth Proportional to 257,827.98, 355,824.05 and 143,117.40

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Solution

The fourth proportional to 257,827.98, 355,824.05 and 143,117.40 is: 197,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,827.98 : 355,824.05 = 143,117.40 : x
  2. Step 2: Convert to fraction form
    257,827.98/355,824.05 = 143,117.40/x
  3. Step 3: Cross multiply
    257,827.98x = 355,824.05 × 143,117.40
  4. Step 4: Simplify right side
    257,827.98x = 50,924,612,177.88
  5. Step 5: Solve for x
    x = 50,924,612,177.88/257,827.98
  6. Step 6: Final answer
    x = 197,513.91

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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.