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Finding the Fourth Proportional to 340,566.93, 470,019.28 and 187,620.79

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Solution

The fourth proportional to 340,566.93, 470,019.28 and 187,620.79 is: 258,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,566.93 : 470,019.28 = 187,620.79 : x
  2. Step 2: Convert to fraction form
    340,566.93/470,019.28 = 187,620.79/x
  3. Step 3: Cross multiply
    340,566.93x = 470,019.28 × 187,620.79
  4. Step 4: Simplify right side
    340,566.93x = 88,185,389,541.09
  5. Step 5: Solve for x
    x = 88,185,389,541.09/340,566.93
  6. Step 6: Final answer
    x = 258,937.03

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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.