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Finding the Fourth Proportional to 353,112.80, 529,208.40 and 163,551.20

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Solution

The fourth proportional to 353,112.80, 529,208.40 and 163,551.20 is: 245,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,112.80 : 529,208.40 = 163,551.20 : x
  2. Step 2: Convert to fraction form
    353,112.80/529,208.40 = 163,551.20/x
  3. Step 3: Cross multiply
    353,112.80x = 529,208.40 × 163,551.20
  4. Step 4: Simplify right side
    353,112.80x = 86,552,668,870.08
  5. Step 5: Solve for x
    x = 86,552,668,870.08/353,112.80
  6. Step 6: Final answer
    x = 245,113.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.