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Finding the Fourth Proportional to 358,190.69, 494,258.12 and 242,156.48

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Solution

The fourth proportional to 358,190.69, 494,258.12 and 242,156.48 is: 334,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,190.69 : 494,258.12 = 242,156.48 : x
  2. Step 2: Convert to fraction form
    358,190.69/494,258.12 = 242,156.48/x
  3. Step 3: Cross multiply
    358,190.69x = 494,258.12 × 242,156.48
  4. Step 4: Simplify right side
    358,190.69x = 119,687,805,339.84
  5. Step 5: Solve for x
    x = 119,687,805,339.84/358,190.69
  6. Step 6: Final answer
    x = 334,145.49

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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.