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Finding the Fourth Proportional to 355,513.20, 533,075.40 and 144,913.20

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Solution

The fourth proportional to 355,513.20, 533,075.40 and 144,913.20 is: 217,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,513.20 : 533,075.40 = 144,913.20 : x
  2. Step 2: Convert to fraction form
    355,513.20/533,075.40 = 144,913.20/x
  3. Step 3: Cross multiply
    355,513.20x = 533,075.40 × 144,913.20
  4. Step 4: Simplify right side
    355,513.20x = 77,249,662,055.28
  5. Step 5: Solve for x
    x = 77,249,662,055.28/355,513.20
  6. Step 6: Final answer
    x = 217,290.56

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