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Finding the Fourth Proportional to 443,873.70, 665,810.55 and 163,500.30

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Solution

The fourth proportional to 443,873.70, 665,810.55 and 163,500.30 is: 245,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,873.70 : 665,810.55 = 163,500.30 : x
  2. Step 2: Convert to fraction form
    443,873.70/665,810.55 = 163,500.30/x
  3. Step 3: Cross multiply
    443,873.70x = 665,810.55 × 163,500.30
  4. Step 4: Simplify right side
    443,873.70x = 108,860,224,668.17
  5. Step 5: Solve for x
    x = 108,860,224,668.17/443,873.70
  6. Step 6: Final answer
    x = 245,250.45

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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.