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Finding the Fourth Proportional to 347,744.80, 521,228.40 and 148,031.20

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Solution

The fourth proportional to 347,744.80, 521,228.40 and 148,031.20 is: 221,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,744.80 : 521,228.40 = 148,031.20 : x
  2. Step 2: Convert to fraction form
    347,744.80/521,228.40 = 148,031.20/x
  3. Step 3: Cross multiply
    347,744.80x = 521,228.40 × 148,031.20
  4. Step 4: Simplify right side
    347,744.80x = 77,158,065,526.08
  5. Step 5: Solve for x
    x = 77,158,065,526.08/347,744.80
  6. Step 6: Final answer
    x = 221,881.29

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