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Finding the Fourth Proportional to 297,051.60, 445,577.40 and 86,710.80

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Solution

The fourth proportional to 297,051.60, 445,577.40 and 86,710.80 is: 130,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,051.60 : 445,577.40 = 86,710.80 : x
  2. Step 2: Convert to fraction form
    297,051.60/445,577.40 = 86,710.80/x
  3. Step 3: Cross multiply
    297,051.60x = 445,577.40 × 86,710.80
  4. Step 4: Simplify right side
    297,051.60x = 38,636,372,815.92
  5. Step 5: Solve for x
    x = 38,636,372,815.92/297,051.60
  6. Step 6: Final answer
    x = 130,066.20

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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.