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Finding the Fourth Proportional to 297,382.60, 446,030.70 and 86,998.60

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Solution

The fourth proportional to 297,382.60, 446,030.70 and 86,998.60 is: 130,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,382.60 : 446,030.70 = 86,998.60 : x
  2. Step 2: Convert to fraction form
    297,382.60/446,030.70 = 86,998.60/x
  3. Step 3: Cross multiply
    297,382.60x = 446,030.70 × 86,998.60
  4. Step 4: Simplify right side
    297,382.60x = 38,804,046,457.02
  5. Step 5: Solve for x
    x = 38,804,046,457.02/297,382.60
  6. Step 6: Final answer
    x = 130,485.26

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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.