Home / 253,215.32-349,431.18-140,035.64

Finding the Fourth Proportional to 253,215.32, 349,431.18 and 140,035.64

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Solution

The fourth proportional to 253,215.32, 349,431.18 and 140,035.64 is: 193,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,215.32 : 349,431.18 = 140,035.64 : x
  2. Step 2: Convert to fraction form
    253,215.32/349,431.18 = 140,035.64/x
  3. Step 3: Cross multiply
    253,215.32x = 349,431.18 × 140,035.64
  4. Step 4: Simplify right side
    253,215.32x = 48,932,818,927.26
  5. Step 5: Solve for x
    x = 48,932,818,927.26/253,215.32
  6. Step 6: Final answer
    x = 193,245.89

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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.