Home / 535.20-802.40-192.96

Finding the Fourth Proportional to 535.20, 802.40 and 192.96

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Solution

The fourth proportional to 535.20, 802.40 and 192.96 is: 289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.20 : 802.40 = 192.96 : x
  2. Step 2: Convert to fraction form
    535.20/802.40 = 192.96/x
  3. Step 3: Cross multiply
    535.20x = 802.40 × 192.96
  4. Step 4: Simplify right side
    535.20x = 154,831.10
  5. Step 5: Solve for x
    x = 154,831.10/535.20
  6. Step 6: Final answer
    x = 289.30

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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.