Home / 291,295.07-436,948.08-80,938.49

Finding the Fourth Proportional to 291,295.07, 436,948.08 and 80,938.49

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Solution

The fourth proportional to 291,295.07, 436,948.08 and 80,938.49 is: 121,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,295.07 : 436,948.08 = 80,938.49 : x
  2. Step 2: Convert to fraction form
    291,295.07/436,948.08 = 80,938.49/x
  3. Step 3: Cross multiply
    291,295.07x = 436,948.08 × 80,938.49
  4. Step 4: Simplify right side
    291,295.07x = 35,365,917,803.60
  5. Step 5: Solve for x
    x = 35,365,917,803.60/291,295.07
  6. Step 6: Final answer
    x = 121,409.26

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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.