Home / 255,478.32-352,560.60-142,305.12

Finding the Fourth Proportional to 255,478.32, 352,560.60 and 142,305.12

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Solution

The fourth proportional to 255,478.32, 352,560.60 and 142,305.12 is: 196,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,478.32 : 352,560.60 = 142,305.12 : x
  2. Step 2: Convert to fraction form
    255,478.32/352,560.60 = 142,305.12/x
  3. Step 3: Cross multiply
    255,478.32x = 352,560.60 × 142,305.12
  4. Step 4: Simplify right side
    255,478.32x = 50,171,178,490.27
  5. Step 5: Solve for x
    x = 50,171,178,490.27/255,478.32
  6. Step 6: Final answer
    x = 196,381.35

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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.