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Finding the Fourth Proportional to 445,996.77, 615,475.85 and 242,047.64

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Solution

The fourth proportional to 445,996.77, 615,475.85 and 242,047.64 is: 334,025.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,996.77 : 615,475.85 = 242,047.64 : x
  2. Step 2: Convert to fraction form
    445,996.77/615,475.85 = 242,047.64/x
  3. Step 3: Cross multiply
    445,996.77x = 615,475.85 × 242,047.64
  4. Step 4: Simplify right side
    445,996.77x = 148,974,478,659.46
  5. Step 5: Solve for x
    x = 148,974,478,659.46/445,996.77
  6. Step 6: Final answer
    x = 334,025.92

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Double scale
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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.