Home / 255,311.02-352,322.35-142,133.77

Finding the Fourth Proportional to 255,311.02, 352,322.35 and 142,133.77

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Solution

The fourth proportional to 255,311.02, 352,322.35 and 142,133.77 is: 196,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,311.02 : 352,322.35 = 142,133.77 : x
  2. Step 2: Convert to fraction form
    255,311.02/352,322.35 = 142,133.77/x
  3. Step 3: Cross multiply
    255,311.02x = 352,322.35 × 142,133.77
  4. Step 4: Simplify right side
    255,311.02x = 50,076,903,860.76
  5. Step 5: Solve for x
    x = 50,076,903,860.76/255,311.02
  6. Step 6: Final answer
    x = 196,140.78

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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.