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Finding the Fourth Proportional to 348,347.70, 480,757.41 and 197,428.50

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Solution

The fourth proportional to 348,347.70, 480,757.41 and 197,428.50 is: 272,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,347.70 : 480,757.41 = 197,428.50 : x
  2. Step 2: Convert to fraction form
    348,347.70/480,757.41 = 197,428.50/x
  3. Step 3: Cross multiply
    348,347.70x = 480,757.41 × 197,428.50
  4. Step 4: Simplify right side
    348,347.70x = 94,915,214,320.19
  5. Step 5: Solve for x
    x = 94,915,214,320.19/348,347.70
  6. Step 6: Final answer
    x = 272,472.63

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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.