Home / 257,225.40-354,970.96-142,511.48

Finding the Fourth Proportional to 257,225.40, 354,970.96 and 142,511.48

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Solution

The fourth proportional to 257,225.40, 354,970.96 and 142,511.48 is: 196,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,225.40 : 354,970.96 = 142,511.48 : x
  2. Step 2: Convert to fraction form
    257,225.40/354,970.96 = 142,511.48/x
  3. Step 3: Cross multiply
    257,225.40x = 354,970.96 × 142,511.48
  4. Step 4: Simplify right side
    257,225.40x = 50,587,436,866.62
  5. Step 5: Solve for x
    x = 50,587,436,866.62/257,225.40
  6. Step 6: Final answer
    x = 196,665.79

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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.