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Finding the Fourth Proportional to 332,455.78, 498,683.70 and 83,137.78

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Solution

The fourth proportional to 332,455.78, 498,683.70 and 83,137.78 is: 124,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,455.78 : 498,683.70 = 83,137.78 : x
  2. Step 2: Convert to fraction form
    332,455.78/498,683.70 = 83,137.78/x
  3. Step 3: Cross multiply
    332,455.78x = 498,683.70 × 83,137.78
  4. Step 4: Simplify right side
    332,455.78x = 41,459,455,740.19
  5. Step 5: Solve for x
    x = 41,459,455,740.19/332,455.78
  6. Step 6: Final answer
    x = 124,706.68

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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.