Home / 309,625.40-464,438.10-99,284.60

Finding the Fourth Proportional to 309,625.40, 464,438.10 and 99,284.60

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Solution

The fourth proportional to 309,625.40, 464,438.10 and 99,284.60 is: 148,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,625.40 : 464,438.10 = 99,284.60 : x
  2. Step 2: Convert to fraction form
    309,625.40/464,438.10 = 99,284.60/x
  3. Step 3: Cross multiply
    309,625.40x = 464,438.10 × 99,284.60
  4. Step 4: Simplify right side
    309,625.40x = 46,111,550,983.26
  5. Step 5: Solve for x
    x = 46,111,550,983.26/309,625.40
  6. Step 6: Final answer
    x = 148,926.90

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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.