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Finding the Fourth Proportional to 445,999.02, 615,478.95 and 242,049.90

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Solution

The fourth proportional to 445,999.02, 615,478.95 and 242,049.90 is: 334,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,999.02 : 615,478.95 = 242,049.90 : x
  2. Step 2: Convert to fraction form
    445,999.02/615,478.95 = 242,049.90/x
  3. Step 3: Cross multiply
    445,999.02x = 615,478.95 × 242,049.90
  4. Step 4: Simplify right side
    445,999.02x = 148,976,618,299.61
  5. Step 5: Solve for x
    x = 148,976,618,299.61/445,999.02
  6. Step 6: Final answer
    x = 334,029.03

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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.