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Finding the Fourth Proportional to 306,501.57, 422,935.02 and 170,503.38

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Solution

The fourth proportional to 306,501.57, 422,935.02 and 170,503.38 is: 235,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,501.57 : 422,935.02 = 170,503.38 : x
  2. Step 2: Convert to fraction form
    306,501.57/422,935.02 = 170,503.38/x
  3. Step 3: Cross multiply
    306,501.57x = 422,935.02 × 170,503.38
  4. Step 4: Simplify right side
    306,501.57x = 72,111,850,430.37
  5. Step 5: Solve for x
    x = 72,111,850,430.37/306,501.57
  6. Step 6: Final answer
    x = 235,274.00

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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.