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Finding the Fourth Proportional to 340,455.70, 470,030.07 and 302,620.60

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Solution

The fourth proportional to 340,455.70, 470,030.07 and 302,620.60 is: 417,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,455.70 : 470,030.07 = 302,620.60 : x
  2. Step 2: Convert to fraction form
    340,455.70/470,030.07 = 302,620.60/x
  3. Step 3: Cross multiply
    340,455.70x = 470,030.07 × 302,620.60
  4. Step 4: Simplify right side
    340,455.70x = 142,240,781,801.44
  5. Step 5: Solve for x
    x = 142,240,781,801.44/340,455.70
  6. Step 6: Final answer
    x = 417,795.27

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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.