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Finding the Fourth Proportional to 348,295.98, 480,701.00 and 212,408.76

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Solution

The fourth proportional to 348,295.98, 480,701.00 and 212,408.76 is: 293,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,295.98 : 480,701.00 = 212,408.76 : x
  2. Step 2: Convert to fraction form
    348,295.98/480,701.00 = 212,408.76/x
  3. Step 3: Cross multiply
    348,295.98x = 480,701.00 × 212,408.76
  4. Step 4: Simplify right side
    348,295.98x = 102,105,102,278.72
  5. Step 5: Solve for x
    x = 102,105,102,278.72/348,295.98
  6. Step 6: Final answer
    x = 293,156.13

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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.