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Finding the Fourth Proportional to 455,643.15, 683,300.70 and 230,928.90

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Solution

The fourth proportional to 455,643.15, 683,300.70 and 230,928.90 is: 346,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,643.15 : 683,300.70 = 230,928.90 : x
  2. Step 2: Convert to fraction form
    455,643.15/683,300.70 = 230,928.90/x
  3. Step 3: Cross multiply
    455,643.15x = 683,300.70 × 230,928.90
  4. Step 4: Simplify right side
    455,643.15x = 157,793,879,020.23
  5. Step 5: Solve for x
    x = 157,793,879,020.23/455,643.15
  6. Step 6: Final answer
    x = 346,310.22

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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.