Home / 257,041.22-354,705.21-142,311.74

Finding the Fourth Proportional to 257,041.22, 354,705.21 and 142,311.74

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Solution

The fourth proportional to 257,041.22, 354,705.21 and 142,311.74 is: 196,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,041.22 : 354,705.21 = 142,311.74 : x
  2. Step 2: Convert to fraction form
    257,041.22/354,705.21 = 142,311.74/x
  3. Step 3: Cross multiply
    257,041.22x = 354,705.21 × 142,311.74
  4. Step 4: Simplify right side
    257,041.22x = 50,478,713,848.64
  5. Step 5: Solve for x
    x = 50,478,713,848.64/257,041.22
  6. Step 6: Final answer
    x = 196,383.73

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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.