Home / 358,870.20-539,471.70-307,548.60

Finding the Fourth Proportional to 358,870.20, 539,471.70 and 307,548.60

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Solution

The fourth proportional to 358,870.20, 539,471.70 and 307,548.60 is: 462,322.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,870.20 : 539,471.70 = 307,548.60 : x
  2. Step 2: Convert to fraction form
    358,870.20/539,471.70 = 307,548.60/x
  3. Step 3: Cross multiply
    358,870.20x = 539,471.70 × 307,548.60
  4. Step 4: Simplify right side
    358,870.20x = 165,913,766,074.62
  5. Step 5: Solve for x
    x = 165,913,766,074.62/358,870.20
  6. Step 6: Final answer
    x = 462,322.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.