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Finding the Fourth Proportional to 443,975.70, 665,963.55 and 163,602.30

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Solution

The fourth proportional to 443,975.70, 665,963.55 and 163,602.30 is: 245,403.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,975.70 : 665,963.55 = 163,602.30 : x
  2. Step 2: Convert to fraction form
    443,975.70/665,963.55 = 163,602.30/x
  3. Step 3: Cross multiply
    443,975.70x = 665,963.55 × 163,602.30
  4. Step 4: Simplify right side
    443,975.70x = 108,953,168,496.17
  5. Step 5: Solve for x
    x = 108,953,168,496.17/443,975.70
  6. Step 6: Final answer
    x = 245,403.45

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Similar ratio
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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.