Home / 305,790.80-458,686.20-302,838.35

Finding the Fourth Proportional to 305,790.80, 458,686.20 and 302,838.35

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Solution

The fourth proportional to 305,790.80, 458,686.20 and 302,838.35 is: 454,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,790.80 : 458,686.20 = 302,838.35 : x
  2. Step 2: Convert to fraction form
    305,790.80/458,686.20 = 302,838.35/x
  3. Step 3: Cross multiply
    305,790.80x = 458,686.20 × 302,838.35
  4. Step 4: Simplify right side
    305,790.80x = 138,907,771,975.77
  5. Step 5: Solve for x
    x = 138,907,771,975.77/305,790.80
  6. Step 6: Final answer
    x = 454,257.53

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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.