Home / 217,026.40-325,345.20-142,182.40

Finding the Fourth Proportional to 217,026.40, 325,345.20 and 142,182.40

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Solution

The fourth proportional to 217,026.40, 325,345.20 and 142,182.40 is: 213,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,026.40 : 325,345.20 = 142,182.40 : x
  2. Step 2: Convert to fraction form
    217,026.40/325,345.20 = 142,182.40/x
  3. Step 3: Cross multiply
    217,026.40x = 325,345.20 × 142,182.40
  4. Step 4: Simplify right side
    217,026.40x = 46,258,361,364.48
  5. Step 5: Solve for x
    x = 46,258,361,364.48/217,026.40
  6. Step 6: Final answer
    x = 213,146.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.