Home / 253,500.12-349,830.16-140,322.86

Finding the Fourth Proportional to 253,500.12, 349,830.16 and 140,322.86

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Solution

The fourth proportional to 253,500.12, 349,830.16 and 140,322.86 is: 193,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,500.12 : 349,830.16 = 140,322.86 : x
  2. Step 2: Convert to fraction form
    253,500.12/349,830.16 = 140,322.86/x
  3. Step 3: Cross multiply
    253,500.12x = 349,830.16 × 140,322.86
  4. Step 4: Simplify right side
    253,500.12x = 49,089,168,565.46
  5. Step 5: Solve for x
    x = 49,089,168,565.46/253,500.12
  6. Step 6: Final answer
    x = 193,645.54

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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.