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Finding the Fourth Proportional to 228,362.40, 342,513.36 and 103,674.72

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Solution

The fourth proportional to 228,362.40, 342,513.36 and 103,674.72 is: 155,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,362.40 : 342,513.36 = 103,674.72 : x
  2. Step 2: Convert to fraction form
    228,362.40/342,513.36 = 103,674.72/x
  3. Step 3: Cross multiply
    228,362.40x = 342,513.36 × 103,674.72
  4. Step 4: Simplify right side
    228,362.40x = 35,509,976,694.26
  5. Step 5: Solve for x
    x = 35,509,976,694.26/228,362.40
  6. Step 6: Final answer
    x = 155,498.35

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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.