Home / 328,550.15-492,828.91-103,905.16

Finding the Fourth Proportional to 328,550.15, 492,828.91 and 103,905.16

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Solution

The fourth proportional to 328,550.15, 492,828.91 and 103,905.16 is: 155,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,550.15 : 492,828.91 = 103,905.16 : x
  2. Step 2: Convert to fraction form
    328,550.15/492,828.91 = 103,905.16/x
  3. Step 3: Cross multiply
    328,550.15x = 492,828.91 × 103,905.16
  4. Step 4: Simplify right side
    328,550.15x = 51,207,465,254.34
  5. Step 5: Solve for x
    x = 51,207,465,254.34/328,550.15
  6. Step 6: Final answer
    x = 155,858.90

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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.