Home / 314,555.81-434,091.97-171,315.75

Finding the Fourth Proportional to 314,555.81, 434,091.97 and 171,315.75

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Solution

The fourth proportional to 314,555.81, 434,091.97 and 171,315.75 is: 236,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,555.81 : 434,091.97 = 171,315.75 : x
  2. Step 2: Convert to fraction form
    314,555.81/434,091.97 = 171,315.75/x
  3. Step 3: Cross multiply
    314,555.81x = 434,091.97 × 171,315.75
  4. Step 4: Simplify right side
    314,555.81x = 74,366,791,409.53
  5. Step 5: Solve for x
    x = 74,366,791,409.53/314,555.81
  6. Step 6: Final answer
    x = 236,418.43

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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.