Home / 255,322.96-352,345.68-142,172.40

Finding the Fourth Proportional to 255,322.96, 352,345.68 and 142,172.40

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Solution

The fourth proportional to 255,322.96, 352,345.68 and 142,172.40 is: 196,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,322.96 : 352,345.68 = 142,172.40 : x
  2. Step 2: Convert to fraction form
    255,322.96/352,345.68 = 142,172.40/x
  3. Step 3: Cross multiply
    255,322.96x = 352,345.68 × 142,172.40
  4. Step 4: Simplify right side
    255,322.96x = 50,093,830,955.23
  5. Step 5: Solve for x
    x = 50,093,830,955.23/255,322.96
  6. Step 6: Final answer
    x = 196,197.91

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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.