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Finding the Fourth Proportional to 235,409.82, 324,758.34 and 139,862.22

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Solution

The fourth proportional to 235,409.82, 324,758.34 and 139,862.22 is: 192,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,409.82 : 324,758.34 = 139,862.22 : x
  2. Step 2: Convert to fraction form
    235,409.82/324,758.34 = 139,862.22/x
  3. Step 3: Cross multiply
    235,409.82x = 324,758.34 × 139,862.22
  4. Step 4: Simplify right side
    235,409.82x = 45,421,422,395.91
  5. Step 5: Solve for x
    x = 45,421,422,395.91/235,409.82
  6. Step 6: Final answer
    x = 192,946.17

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1.5x scale

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.