Home / 291,675.50-437,515.07-81,315.26

Finding the Fourth Proportional to 291,675.50, 437,515.07 and 81,315.26

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Solution

The fourth proportional to 291,675.50, 437,515.07 and 81,315.26 is: 121,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,675.50 : 437,515.07 = 81,315.26 : x
  2. Step 2: Convert to fraction form
    291,675.50/437,515.07 = 81,315.26/x
  3. Step 3: Cross multiply
    291,675.50x = 437,515.07 × 81,315.26
  4. Step 4: Simplify right side
    291,675.50x = 35,576,651,670.97
  5. Step 5: Solve for x
    x = 35,576,651,670.97/291,675.50
  6. Step 6: Final answer
    x = 121,973.40

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1.5x scale

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.