Home / 231,220.16-346,858.02-81,429.50

Finding the Fourth Proportional to 231,220.16, 346,858.02 and 81,429.50

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Solution

The fourth proportional to 231,220.16, 346,858.02 and 81,429.50 is: 122,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,220.16 : 346,858.02 = 81,429.50 : x
  2. Step 2: Convert to fraction form
    231,220.16/346,858.02 = 81,429.50/x
  3. Step 3: Cross multiply
    231,220.16x = 346,858.02 × 81,429.50
  4. Step 4: Simplify right side
    231,220.16x = 28,244,475,139.59
  5. Step 5: Solve for x
    x = 28,244,475,139.59/231,220.16
  6. Step 6: Final answer
    x = 122,154.03

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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.