Home / 257,009.52-354,661.02-142,280.04

Finding the Fourth Proportional to 257,009.52, 354,661.02 and 142,280.04

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Solution

The fourth proportional to 257,009.52, 354,661.02 and 142,280.04 is: 196,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,009.52 : 354,661.02 = 142,280.04 : x
  2. Step 2: Convert to fraction form
    257,009.52/354,661.02 = 142,280.04/x
  3. Step 3: Cross multiply
    257,009.52x = 354,661.02 × 142,280.04
  4. Step 4: Simplify right side
    257,009.52x = 50,461,184,112.04
  5. Step 5: Solve for x
    x = 50,461,184,112.04/257,009.52
  6. Step 6: Final answer
    x = 196,339.75

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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.