Home / 537,138.20-805,707.30-163,112.60

Finding the Fourth Proportional to 537,138.20, 805,707.30 and 163,112.60

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Solution

The fourth proportional to 537,138.20, 805,707.30 and 163,112.60 is: 244,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,138.20 : 805,707.30 = 163,112.60 : x
  2. Step 2: Convert to fraction form
    537,138.20/805,707.30 = 163,112.60/x
  3. Step 3: Cross multiply
    537,138.20x = 805,707.30 × 163,112.60
  4. Step 4: Simplify right side
    537,138.20x = 131,421,012,541.98
  5. Step 5: Solve for x
    x = 131,421,012,541.98/537,138.20
  6. Step 6: Final answer
    x = 244,668.90

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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.