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Finding the Fourth Proportional to 344,383.90, 475,378.70 and 258,590.72

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Solution

The fourth proportional to 344,383.90, 475,378.70 and 258,590.72 is: 356,952.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,383.90 : 475,378.70 = 258,590.72 : x
  2. Step 2: Convert to fraction form
    344,383.90/475,378.70 = 258,590.72/x
  3. Step 3: Cross multiply
    344,383.90x = 475,378.70 × 258,590.72
  4. Step 4: Simplify right side
    344,383.90x = 122,928,520,305.66
  5. Step 5: Solve for x
    x = 122,928,520,305.66/344,383.90
  6. Step 6: Final answer
    x = 356,952.00

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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.