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Finding the Fourth Proportional to 429,778.06, 644,853.39 and 163,614.22

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Solution

The fourth proportional to 429,778.06, 644,853.39 and 163,614.22 is: 245,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,778.06 : 644,853.39 = 163,614.22 : x
  2. Step 2: Convert to fraction form
    429,778.06/644,853.39 = 163,614.22/x
  3. Step 3: Cross multiply
    429,778.06x = 644,853.39 × 163,614.22
  4. Step 4: Simplify right side
    429,778.06x = 105,507,184,419.21
  5. Step 5: Solve for x
    x = 105,507,184,419.21/429,778.06
  6. Step 6: Final answer
    x = 245,492.25

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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.