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Finding the Fourth Proportional to 257,592.06, 355,479.98 and 142,872.98

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Solution

The fourth proportional to 257,592.06, 355,479.98 and 142,872.98 is: 197,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,592.06 : 355,479.98 = 142,872.98 : x
  2. Step 2: Convert to fraction form
    257,592.06/355,479.98 = 142,872.98/x
  3. Step 3: Cross multiply
    257,592.06x = 355,479.98 × 142,872.98
  4. Step 4: Simplify right side
    257,592.06x = 50,788,481,581.18
  5. Step 5: Solve for x
    x = 50,788,481,581.18/257,592.06
  6. Step 6: Final answer
    x = 197,166.33

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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.