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Finding the Fourth Proportional to 455,389.80, 683,497.80 and 230,906.40

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Solution

The fourth proportional to 455,389.80, 683,497.80 and 230,906.40 is: 346,569.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,389.80 : 683,497.80 = 230,906.40 : x
  2. Step 2: Convert to fraction form
    455,389.80/683,497.80 = 230,906.40/x
  3. Step 3: Cross multiply
    455,389.80x = 683,497.80 × 230,906.40
  4. Step 4: Simplify right side
    455,389.80x = 157,824,016,405.92
  5. Step 5: Solve for x
    x = 157,824,016,405.92/455,389.80
  6. Step 6: Final answer
    x = 346,569.06

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1.5x scale

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.