Home / 314,778.50-434,393.66-171,538.20

Finding the Fourth Proportional to 314,778.50, 434,393.66 and 171,538.20

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Solution

The fourth proportional to 314,778.50, 434,393.66 and 171,538.20 is: 236,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,778.50 : 434,393.66 = 171,538.20 : x
  2. Step 2: Convert to fraction form
    314,778.50/434,393.66 = 171,538.20/x
  3. Step 3: Cross multiply
    314,778.50x = 434,393.66 × 171,538.20
  4. Step 4: Simplify right side
    314,778.50x = 74,515,106,527.81
  5. Step 5: Solve for x
    x = 74,515,106,527.81/314,778.50
  6. Step 6: Final answer
    x = 236,722.35

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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.