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Finding the Fourth Proportional to 348,430.71, 481,040.50 and 219,479.72

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Solution

The fourth proportional to 348,430.71, 481,040.50 and 219,479.72 is: 303,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,430.71 : 481,040.50 = 219,479.72 : x
  2. Step 2: Convert to fraction form
    348,430.71/481,040.50 = 219,479.72/x
  3. Step 3: Cross multiply
    348,430.71x = 481,040.50 × 219,479.72
  4. Step 4: Simplify right side
    348,430.71x = 105,578,634,902.56
  5. Step 5: Solve for x
    x = 105,578,634,902.56/348,430.71
  6. Step 6: Final answer
    x = 303,011.85

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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.