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Finding the Fourth Proportional to 342,886.21, 473,142.54 and 197,690.37

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Solution

The fourth proportional to 342,886.21, 473,142.54 and 197,690.37 is: 272,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,886.21 : 473,142.54 = 197,690.37 : x
  2. Step 2: Convert to fraction form
    342,886.21/473,142.54 = 197,690.37/x
  3. Step 3: Cross multiply
    342,886.21x = 473,142.54 × 197,690.37
  4. Step 4: Simplify right side
    342,886.21x = 93,535,722,762.39
  5. Step 5: Solve for x
    x = 93,535,722,762.39/342,886.21
  6. Step 6: Final answer
    x = 272,789.40

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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.