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Finding the Fourth Proportional to 358,704.50, 495,034.64 and 197,559.51

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Solution

The fourth proportional to 358,704.50, 495,034.64 and 197,559.51 is: 272,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,704.50 : 495,034.64 = 197,559.51 : x
  2. Step 2: Convert to fraction form
    358,704.50/495,034.64 = 197,559.51/x
  3. Step 3: Cross multiply
    358,704.50x = 495,034.64 × 197,559.51
  4. Step 4: Simplify right side
    358,704.50x = 97,798,798,808.10
  5. Step 5: Solve for x
    x = 97,798,798,808.10/358,704.50
  6. Step 6: Final answer
    x = 272,644.47

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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.