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Finding the Fourth Proportional to 445,996.80, 615,480.12 and 242,049.48

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Solution

The fourth proportional to 445,996.80, 615,480.12 and 242,049.48 is: 334,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,996.80 : 615,480.12 = 242,049.48 : x
  2. Step 2: Convert to fraction form
    445,996.80/615,480.12 = 242,049.48/x
  3. Step 3: Cross multiply
    445,996.80x = 615,480.12 × 242,049.48
  4. Step 4: Simplify right side
    445,996.80x = 148,976,642,996.34
  5. Step 5: Solve for x
    x = 148,976,642,996.34/445,996.80
  6. Step 6: Final answer
    x = 334,030.74

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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.