Home / 255,904.86-353,149.32-142,734.90

Finding the Fourth Proportional to 255,904.86, 353,149.32 and 142,734.90

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Solution

The fourth proportional to 255,904.86, 353,149.32 and 142,734.90 is: 196,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,904.86 : 353,149.32 = 142,734.90 : x
  2. Step 2: Convert to fraction form
    255,904.86/353,149.32 = 142,734.90/x
  3. Step 3: Cross multiply
    255,904.86x = 353,149.32 × 142,734.90
  4. Step 4: Simplify right side
    255,904.86x = 50,406,732,875.27
  5. Step 5: Solve for x
    x = 50,406,732,875.27/255,904.86
  6. Step 6: Final answer
    x = 196,974.50

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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.