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Finding the Fourth Proportional to 358,534.64, 494,768.76 and 197,388.08

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Solution

The fourth proportional to 358,534.64, 494,768.76 and 197,388.08 is: 272,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,534.64 : 494,768.76 = 197,388.08 : x
  2. Step 2: Convert to fraction form
    358,534.64/494,768.76 = 197,388.08/x
  3. Step 3: Cross multiply
    358,534.64x = 494,768.76 × 197,388.08
  4. Step 4: Simplify right side
    358,534.64x = 97,661,455,580.38
  5. Step 5: Solve for x
    x = 97,661,455,580.38/358,534.64
  6. Step 6: Final answer
    x = 272,390.57

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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.