Home / 290,985.98-436,497.42-91,314.25

Finding the Fourth Proportional to 290,985.98, 436,497.42 and 91,314.25

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Solution

The fourth proportional to 290,985.98, 436,497.42 and 91,314.25 is: 136,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,985.98 : 436,497.42 = 91,314.25 : x
  2. Step 2: Convert to fraction form
    290,985.98/436,497.42 = 91,314.25/x
  3. Step 3: Cross multiply
    290,985.98x = 436,497.42 × 91,314.25
  4. Step 4: Simplify right side
    290,985.98x = 39,858,434,534.24
  5. Step 5: Solve for x
    x = 39,858,434,534.24/290,985.98
  6. Step 6: Final answer
    x = 136,977.16

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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.