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Finding the Fourth Proportional to 315,857.39, 473,835.27 and 189,467.93

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Solution

The fourth proportional to 315,857.39, 473,835.27 and 189,467.93 is: 284,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,857.39 : 473,835.27 = 189,467.93 : x
  2. Step 2: Convert to fraction form
    315,857.39/473,835.27 = 189,467.93/x
  3. Step 3: Cross multiply
    315,857.39x = 473,835.27 × 189,467.93
  4. Step 4: Simplify right side
    315,857.39x = 89,776,585,398.71
  5. Step 5: Solve for x
    x = 89,776,585,398.71/315,857.39
  6. Step 6: Final answer
    x = 284,231.40

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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.