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Finding the Fourth Proportional to 353,699.88, 488,090.52 and 192,555.50

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Solution

The fourth proportional to 353,699.88, 488,090.52 and 192,555.50 is: 265,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,699.88 : 488,090.52 = 192,555.50 : x
  2. Step 2: Convert to fraction form
    353,699.88/488,090.52 = 192,555.50/x
  3. Step 3: Cross multiply
    353,699.88x = 488,090.52 × 192,555.50
  4. Step 4: Simplify right side
    353,699.88x = 93,984,511,683.41
  5. Step 5: Solve for x
    x = 93,984,511,683.41/353,699.88
  6. Step 6: Final answer
    x = 265,718.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.