Home / 248,298.81-342,628.66-139,378.22

Finding the Fourth Proportional to 248,298.81, 342,628.66 and 139,378.22

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Solution

The fourth proportional to 248,298.81, 342,628.66 and 139,378.22 is: 192,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,298.81 : 342,628.66 = 139,378.22 : x
  2. Step 2: Convert to fraction form
    248,298.81/342,628.66 = 139,378.22/x
  3. Step 3: Cross multiply
    248,298.81x = 342,628.66 × 139,378.22
  4. Step 4: Simplify right side
    248,298.81x = 47,754,972,751.79
  5. Step 5: Solve for x
    x = 47,754,972,751.79/248,298.81
  6. Step 6: Final answer
    x = 192,328.64

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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.