Home / 392,829.48-542,085.38-223,041.32

Finding the Fourth Proportional to 392,829.48, 542,085.38 and 223,041.32

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Solution

The fourth proportional to 392,829.48, 542,085.38 and 223,041.32 is: 307,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,829.48 : 542,085.38 = 223,041.32 : x
  2. Step 2: Convert to fraction form
    392,829.48/542,085.38 = 223,041.32/x
  3. Step 3: Cross multiply
    392,829.48x = 542,085.38 × 223,041.32
  4. Step 4: Simplify right side
    392,829.48x = 120,907,438,707.90
  5. Step 5: Solve for x
    x = 120,907,438,707.90/392,829.48
  6. Step 6: Final answer
    x = 307,786.06

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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.