Home / 305,139.72-457,647.02-115,534.67

Finding the Fourth Proportional to 305,139.72, 457,647.02 and 115,534.67

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Solution

The fourth proportional to 305,139.72, 457,647.02 and 115,534.67 is: 173,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,139.72 : 457,647.02 = 115,534.67 : x
  2. Step 2: Convert to fraction form
    305,139.72/457,647.02 = 115,534.67/x
  3. Step 3: Cross multiply
    305,139.72x = 457,647.02 × 115,534.67
  4. Step 4: Simplify right side
    305,139.72x = 52,874,097,998.63
  5. Step 5: Solve for x
    x = 52,874,097,998.63/305,139.72
  6. Step 6: Final answer
    x = 173,278.32

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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.