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Finding the Fourth Proportional to 340,308.98, 469,618.10 and 187,345.94

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Solution

The fourth proportional to 340,308.98, 469,618.10 and 187,345.94 is: 258,532.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,308.98 : 469,618.10 = 187,345.94 : x
  2. Step 2: Convert to fraction form
    340,308.98/469,618.10 = 187,345.94/x
  3. Step 3: Cross multiply
    340,308.98x = 469,618.10 × 187,345.94
  4. Step 4: Simplify right side
    340,308.98x = 87,981,044,385.51
  5. Step 5: Solve for x
    x = 87,981,044,385.51/340,308.98
  6. Step 6: Final answer
    x = 258,532.83

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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.