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Finding the Fourth Proportional to 443,693.64, 612,297.21 and 242,489.64

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Solution

The fourth proportional to 443,693.64, 612,297.21 and 242,489.64 is: 334,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,693.64 : 612,297.21 = 242,489.64 : x
  2. Step 2: Convert to fraction form
    443,693.64/612,297.21 = 242,489.64/x
  3. Step 3: Cross multiply
    443,693.64x = 612,297.21 × 242,489.64
  4. Step 4: Simplify right side
    443,693.64x = 148,475,730,025.90
  5. Step 5: Solve for x
    x = 148,475,730,025.90/443,693.64
  6. Step 6: Final answer
    x = 334,635.70

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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.