Home / 250,160.86-345,215.60-139,780.40

Finding the Fourth Proportional to 250,160.86, 345,215.60 and 139,780.40

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Solution

The fourth proportional to 250,160.86, 345,215.60 and 139,780.40 is: 192,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,160.86 : 345,215.60 = 139,780.40 : x
  2. Step 2: Convert to fraction form
    250,160.86/345,215.60 = 139,780.40/x
  3. Step 3: Cross multiply
    250,160.86x = 345,215.60 × 139,780.40
  4. Step 4: Simplify right side
    250,160.86x = 48,254,374,654.24
  5. Step 5: Solve for x
    x = 48,254,374,654.24/250,160.86
  6. Step 6: Final answer
    x = 192,893.38

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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.