Home / 213,225.81-319,144.33-157,043.80

Finding the Fourth Proportional to 213,225.81, 319,144.33 and 157,043.80

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Solution

The fourth proportional to 213,225.81, 319,144.33 and 157,043.80 is: 235,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,225.81 : 319,144.33 = 157,043.80 : x
  2. Step 2: Convert to fraction form
    213,225.81/319,144.33 = 157,043.80/x
  3. Step 3: Cross multiply
    213,225.81x = 319,144.33 × 157,043.80
  4. Step 4: Simplify right side
    213,225.81x = 50,119,638,331.65
  5. Step 5: Solve for x
    x = 50,119,638,331.65/213,225.81
  6. Step 6: Final answer
    x = 235,054.28

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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.