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Finding the Fourth Proportional to 297,072.60, 445,673.70 and 86,693.40

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Solution

The fourth proportional to 297,072.60, 445,673.70 and 86,693.40 is: 130,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,072.60 : 445,673.70 = 86,693.40 : x
  2. Step 2: Convert to fraction form
    297,072.60/445,673.70 = 86,693.40/x
  3. Step 3: Cross multiply
    297,072.60x = 445,673.70 × 86,693.40
  4. Step 4: Simplify right side
    297,072.60x = 38,636,968,343.58
  5. Step 5: Solve for x
    x = 38,636,968,343.58/297,072.60
  6. Step 6: Final answer
    x = 130,059.01

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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.