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Finding the Fourth Proportional to 455,050, 682,043.52 and 342,368.20

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Solution

The fourth proportional to 455,050, 682,043.52 and 342,368.20 is: 513,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,050 : 682,043.52 = 342,368.20 : x
  2. Step 2: Convert to fraction form
    455,050/682,043.52 = 342,368.20/x
  3. Step 3: Cross multiply
    455,050x = 682,043.52 × 342,368.20
  4. Step 4: Simplify right side
    455,050x = 233,510,012,264.06
  5. Step 5: Solve for x
    x = 233,510,012,264.06/455,050
  6. Step 6: Final answer
    x = 513,152.43

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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.