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Finding the Fourth Proportional to 280,470.82, 387,049.71 and 153,146.52

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Solution

The fourth proportional to 280,470.82, 387,049.71 and 153,146.52 is: 211,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,470.82 : 387,049.71 = 153,146.52 : x
  2. Step 2: Convert to fraction form
    280,470.82/387,049.71 = 153,146.52/x
  3. Step 3: Cross multiply
    280,470.82x = 387,049.71 × 153,146.52
  4. Step 4: Simplify right side
    280,470.82x = 59,275,316,153.51
  5. Step 5: Solve for x
    x = 59,275,316,153.51/280,470.82
  6. Step 6: Final answer
    x = 211,342.19

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