Home / 305,890.07-458,317.31-187,313.76

Finding the Fourth Proportional to 305,890.07, 458,317.31 and 187,313.76

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Solution

The fourth proportional to 305,890.07, 458,317.31 and 187,313.76 is: 280,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,890.07 : 458,317.31 = 187,313.76 : x
  2. Step 2: Convert to fraction form
    305,890.07/458,317.31 = 187,313.76/x
  3. Step 3: Cross multiply
    305,890.07x = 458,317.31 × 187,313.76
  4. Step 4: Simplify right side
    305,890.07x = 85,849,137,672.62
  5. Step 5: Solve for x
    x = 85,849,137,672.62/305,890.07
  6. Step 6: Final answer
    x = 280,653.57

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1.5x scale

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.