Home / 305,740.60-458,222.10-272,303.80

Finding the Fourth Proportional to 305,740.60, 458,222.10 and 272,303.80

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Solution

The fourth proportional to 305,740.60, 458,222.10 and 272,303.80 is: 408,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,740.60 : 458,222.10 = 272,303.80 : x
  2. Step 2: Convert to fraction form
    305,740.60/458,222.10 = 272,303.80/x
  3. Step 3: Cross multiply
    305,740.60x = 458,222.10 × 272,303.80
  4. Step 4: Simplify right side
    305,740.60x = 124,775,619,073.98
  5. Step 5: Solve for x
    x = 124,775,619,073.98/305,740.60
  6. Step 6: Final answer
    x = 408,109.42

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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.