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Finding the Fourth Proportional to 234,951.48, 324,085.53 and 139,390.50

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Solution

The fourth proportional to 234,951.48, 324,085.53 and 139,390.50 is: 192,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,951.48 : 324,085.53 = 139,390.50 : x
  2. Step 2: Convert to fraction form
    234,951.48/324,085.53 = 139,390.50/x
  3. Step 3: Cross multiply
    234,951.48x = 324,085.53 × 139,390.50
  4. Step 4: Simplify right side
    234,951.48x = 45,174,444,069.47
  5. Step 5: Solve for x
    x = 45,174,444,069.47/234,951.48
  6. Step 6: Final answer
    x = 192,271.37

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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.