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Finding the Fourth Proportional to 282,705.26, 390,126.65 and 153,640.67

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Solution

The fourth proportional to 282,705.26, 390,126.65 and 153,640.67 is: 212,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,705.26 : 390,126.65 = 153,640.67 : x
  2. Step 2: Convert to fraction form
    282,705.26/390,126.65 = 153,640.67/x
  3. Step 3: Cross multiply
    282,705.26x = 390,126.65 × 153,640.67
  4. Step 4: Simplify right side
    282,705.26x = 59,939,317,172.02
  5. Step 5: Solve for x
    x = 59,939,317,172.02/282,705.26
  6. Step 6: Final answer
    x = 212,020.53

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