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Finding the Fourth Proportional to 358,907.09, 495,313.85 and 197,762.10

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Solution

The fourth proportional to 358,907.09, 495,313.85 and 197,762.10 is: 272,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,907.09 : 495,313.85 = 197,762.10 : x
  2. Step 2: Convert to fraction form
    358,907.09/495,313.85 = 197,762.10/x
  3. Step 3: Cross multiply
    358,907.09x = 495,313.85 × 197,762.10
  4. Step 4: Simplify right side
    358,907.09x = 97,954,303,669.71
  5. Step 5: Solve for x
    x = 97,954,303,669.71/358,907.09
  6. Step 6: Final answer
    x = 272,923.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.