Home / 213,079.36-319,121.12-168,406.40

Finding the Fourth Proportional to 213,079.36, 319,121.12 and 168,406.40

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Solution

The fourth proportional to 213,079.36, 319,121.12 and 168,406.40 is: 252,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,079.36 : 319,121.12 = 168,406.40 : x
  2. Step 2: Convert to fraction form
    213,079.36/319,121.12 = 168,406.40/x
  3. Step 3: Cross multiply
    213,079.36x = 319,121.12 × 168,406.40
  4. Step 4: Simplify right side
    213,079.36x = 53,742,038,983.17
  5. Step 5: Solve for x
    x = 53,742,038,983.17/213,079.36
  6. Step 6: Final answer
    x = 252,216.07

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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.