Home / 490,740.49-736,110.83-153,781.07

Finding the Fourth Proportional to 490,740.49, 736,110.83 and 153,781.07

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Solution

The fourth proportional to 490,740.49, 736,110.83 and 153,781.07 is: 230,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,740.49 : 736,110.83 = 153,781.07 : x
  2. Step 2: Convert to fraction form
    490,740.49/736,110.83 = 153,781.07/x
  3. Step 3: Cross multiply
    490,740.49x = 736,110.83 × 153,781.07
  4. Step 4: Simplify right side
    490,740.49x = 113,199,913,300.72
  5. Step 5: Solve for x
    x = 113,199,913,300.72/490,740.49
  6. Step 6: Final answer
    x = 230,671.64

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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.