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Finding the Fourth Proportional to 245,046.70, 343,415.30 and 245,046.70

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Solution

The fourth proportional to 245,046.70, 343,415.30 and 245,046.70 is: 343,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,046.70 : 343,415.30 = 245,046.70 : x
  2. Step 2: Convert to fraction form
    245,046.70/343,415.30 = 245,046.70/x
  3. Step 3: Cross multiply
    245,046.70x = 343,415.30 × 245,046.70
  4. Step 4: Simplify right side
    245,046.70x = 84,152,785,994.51
  5. Step 5: Solve for x
    x = 84,152,785,994.51/245,046.70
  6. Step 6: Final answer
    x = 343,415.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.