Home / 307,942.41-425,368.53-247,739.79

Finding the Fourth Proportional to 307,942.41, 425,368.53 and 247,739.79

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Solution

The fourth proportional to 307,942.41, 425,368.53 and 247,739.79 is: 342,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,942.41 : 425,368.53 = 247,739.79 : x
  2. Step 2: Convert to fraction form
    307,942.41/425,368.53 = 247,739.79/x
  3. Step 3: Cross multiply
    307,942.41x = 425,368.53 × 247,739.79
  4. Step 4: Simplify right side
    307,942.41x = 105,380,710,294.81
  5. Step 5: Solve for x
    x = 105,380,710,294.81/307,942.41
  6. Step 6: Final answer
    x = 342,209.15

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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.