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Finding the Fourth Proportional to 282,881.73, 390,373.32 and 210,607.50

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Solution

The fourth proportional to 282,881.73, 390,373.32 and 210,607.50 is: 290,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,881.73 : 390,373.32 = 210,607.50 : x
  2. Step 2: Convert to fraction form
    282,881.73/390,373.32 = 210,607.50/x
  3. Step 3: Cross multiply
    282,881.73x = 390,373.32 × 210,607.50
  4. Step 4: Simplify right side
    282,881.73x = 82,215,548,991.90
  5. Step 5: Solve for x
    x = 82,215,548,991.90/282,881.73
  6. Step 6: Final answer
    x = 290,635.77

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