Home / 305,723.46-455,485.95-290,666.37

Finding the Fourth Proportional to 305,723.46, 455,485.95 and 290,666.37

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Solution

The fourth proportional to 305,723.46, 455,485.95 and 290,666.37 is: 433,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,723.46 : 455,485.95 = 290,666.37 : x
  2. Step 2: Convert to fraction form
    305,723.46/455,485.95 = 290,666.37/x
  3. Step 3: Cross multiply
    305,723.46x = 455,485.95 × 290,666.37
  4. Step 4: Simplify right side
    305,723.46x = 132,394,447,672.50
  5. Step 5: Solve for x
    x = 132,394,447,672.50/305,723.46
  6. Step 6: Final answer
    x = 433,052.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.