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Finding the Fourth Proportional to 257,754.33, 355,700.25 and 143,050.29

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Solution

The fourth proportional to 257,754.33, 355,700.25 and 143,050.29 is: 197,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,754.33 : 355,700.25 = 143,050.29 : x
  2. Step 2: Convert to fraction form
    257,754.33/355,700.25 = 143,050.29/x
  3. Step 3: Cross multiply
    257,754.33x = 355,700.25 × 143,050.29
  4. Step 4: Simplify right side
    257,754.33x = 50,883,023,915.57
  5. Step 5: Solve for x
    x = 50,883,023,915.57/257,754.33
  6. Step 6: Final answer
    x = 197,409.00

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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.