Home / 314,836.41-434,131.22-212,684.60

Finding the Fourth Proportional to 314,836.41, 434,131.22 and 212,684.60

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Solution

The fourth proportional to 314,836.41, 434,131.22 and 212,684.60 is: 293,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,836.41 : 434,131.22 = 212,684.60 : x
  2. Step 2: Convert to fraction form
    314,836.41/434,131.22 = 212,684.60/x
  3. Step 3: Cross multiply
    314,836.41x = 434,131.22 × 212,684.60
  4. Step 4: Simplify right side
    314,836.41x = 92,333,021,639.13
  5. Step 5: Solve for x
    x = 92,333,021,639.13/314,836.41
  6. Step 6: Final answer
    x = 293,273.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.