Home / 305,040.46-457,290-115,368.16

Finding the Fourth Proportional to 305,040.46, 457,290 and 115,368.16

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Solution

The fourth proportional to 305,040.46, 457,290 and 115,368.16 is: 172,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,040.46 : 457,290 = 115,368.16 : x
  2. Step 2: Convert to fraction form
    305,040.46/457,290 = 115,368.16/x
  3. Step 3: Cross multiply
    305,040.46x = 457,290 × 115,368.16
  4. Step 4: Simplify right side
    305,040.46x = 52,756,705,886.40
  5. Step 5: Solve for x
    x = 52,756,705,886.40/305,040.46
  6. Step 6: Final answer
    x = 172,949.86

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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.