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Finding the Fourth Proportional to 490,172.42, 735,258.54 and 157,748.42

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Solution

The fourth proportional to 490,172.42, 735,258.54 and 157,748.42 is: 236,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,172.42 : 735,258.54 = 157,748.42 : x
  2. Step 2: Convert to fraction form
    490,172.42/735,258.54 = 157,748.42/x
  3. Step 3: Cross multiply
    490,172.42x = 735,258.54 × 157,748.42
  4. Step 4: Simplify right side
    490,172.42x = 115,985,872,976.51
  5. Step 5: Solve for x
    x = 115,985,872,976.51/490,172.42
  6. Step 6: Final answer
    x = 236,622.60

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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.