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Finding the Fourth Proportional to 315,719.83, 473,522.81 and 91,025.07

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Solution

The fourth proportional to 315,719.83, 473,522.81 and 91,025.07 is: 136,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,719.83 : 473,522.81 = 91,025.07 : x
  2. Step 2: Convert to fraction form
    315,719.83/473,522.81 = 91,025.07/x
  3. Step 3: Cross multiply
    315,719.83x = 473,522.81 × 91,025.07
  4. Step 4: Simplify right side
    315,719.83x = 43,102,445,208.03
  5. Step 5: Solve for x
    x = 43,102,445,208.03/315,719.83
  6. Step 6: Final answer
    x = 136,521.19

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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.