Home / 213,555.29-320,239.98-113,693.22

Finding the Fourth Proportional to 213,555.29, 320,239.98 and 113,693.22

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Solution

The fourth proportional to 213,555.29, 320,239.98 and 113,693.22 is: 170,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,555.29 : 320,239.98 = 113,693.22 : x
  2. Step 2: Convert to fraction form
    213,555.29/320,239.98 = 113,693.22/x
  3. Step 3: Cross multiply
    213,555.29x = 320,239.98 × 113,693.22
  4. Step 4: Simplify right side
    213,555.29x = 36,409,114,498.94
  5. Step 5: Solve for x
    x = 36,409,114,498.94/213,555.29
  6. Step 6: Final answer
    x = 170,490.35

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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.