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Finding the Fourth Proportional to 324,420.30, 486,630.45 and 114,030.90

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Solution

The fourth proportional to 324,420.30, 486,630.45 and 114,030.90 is: 171,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,420.30 : 486,630.45 = 114,030.90 : x
  2. Step 2: Convert to fraction form
    324,420.30/486,630.45 = 114,030.90/x
  3. Step 3: Cross multiply
    324,420.30x = 486,630.45 × 114,030.90
  4. Step 4: Simplify right side
    324,420.30x = 55,490,908,180.91
  5. Step 5: Solve for x
    x = 55,490,908,180.91/324,420.30
  6. Step 6: Final answer
    x = 171,046.35

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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.