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Finding the Fourth Proportional to 329,220.80, 493,831.20 and 292,479.20

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Solution

The fourth proportional to 329,220.80, 493,831.20 and 292,479.20 is: 438,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,220.80 : 493,831.20 = 292,479.20 : x
  2. Step 2: Convert to fraction form
    329,220.80/493,831.20 = 292,479.20/x
  3. Step 3: Cross multiply
    329,220.80x = 493,831.20 × 292,479.20
  4. Step 4: Simplify right side
    329,220.80x = 144,435,354,311.04
  5. Step 5: Solve for x
    x = 144,435,354,311.04/329,220.80
  6. Step 6: Final answer
    x = 438,718.80

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1.5x scale

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.