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Finding the Fourth Proportional to 340,364.96, 469,699.79 and 187,400.03

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Solution

The fourth proportional to 340,364.96, 469,699.79 and 187,400.03 is: 258,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,364.96 : 469,699.79 = 187,400.03 : x
  2. Step 2: Convert to fraction form
    340,364.96/469,699.79 = 187,400.03/x
  3. Step 3: Cross multiply
    340,364.96x = 469,699.79 × 187,400.03
  4. Step 4: Simplify right side
    340,364.96x = 88,021,751,451.49
  5. Step 5: Solve for x
    x = 88,021,751,451.49/340,364.96
  6. Step 6: Final answer
    x = 258,609.91

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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.