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Finding the Fourth Proportional to 340,812.82, 470,323.56 and 197,657.74

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Solution

The fourth proportional to 340,812.82, 470,323.56 and 197,657.74 is: 272,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,812.82 : 470,323.56 = 197,657.74 : x
  2. Step 2: Convert to fraction form
    340,812.82/470,323.56 = 197,657.74/x
  3. Step 3: Cross multiply
    340,812.82x = 470,323.56 × 197,657.74
  4. Step 4: Simplify right side
    340,812.82x = 92,963,091,938.35
  5. Step 5: Solve for x
    x = 92,963,091,938.35/340,812.82
  6. Step 6: Final answer
    x = 272,768.76

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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.