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Finding the Fourth Proportional to 490,492.04, 735,730.76 and 135,498.20

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Solution

The fourth proportional to 490,492.04, 735,730.76 and 135,498.20 is: 203,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,492.04 : 735,730.76 = 135,498.20 : x
  2. Step 2: Convert to fraction form
    490,492.04/735,730.76 = 135,498.20/x
  3. Step 3: Cross multiply
    490,492.04x = 735,730.76 × 135,498.20
  4. Step 4: Simplify right side
    490,492.04x = 99,690,193,664.63
  5. Step 5: Solve for x
    x = 99,690,193,664.63/490,492.04
  6. Step 6: Final answer
    x = 203,245.28

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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.