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Finding the Fourth Proportional to 490,885, 736,336.60 and 153,918.12

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Solution

The fourth proportional to 490,885, 736,336.60 and 153,918.12 is: 230,880.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,885 : 736,336.60 = 153,918.12 : x
  2. Step 2: Convert to fraction form
    490,885/736,336.60 = 153,918.12/x
  3. Step 3: Cross multiply
    490,885x = 736,336.60 × 153,918.12
  4. Step 4: Simplify right side
    490,885x = 113,335,545,159.19
  5. Step 5: Solve for x
    x = 113,335,545,159.19/490,885
  6. Step 6: Final answer
    x = 230,880.03

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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.