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Finding the Fourth Proportional to 300,431.55, 450,802.62 and 132,070.08

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Solution

The fourth proportional to 300,431.55, 450,802.62 and 132,070.08 is: 198,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,431.55 : 450,802.62 = 132,070.08 : x
  2. Step 2: Convert to fraction form
    300,431.55/450,802.62 = 132,070.08/x
  3. Step 3: Cross multiply
    300,431.55x = 450,802.62 × 132,070.08
  4. Step 4: Simplify right side
    300,431.55x = 59,537,538,087.61
  5. Step 5: Solve for x
    x = 59,537,538,087.61/300,431.55
  6. Step 6: Final answer
    x = 198,173.39

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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.