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Finding the Fourth Proportional to 320,071.67, 441,707.67 and 176,840.78

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Solution

The fourth proportional to 320,071.67, 441,707.67 and 176,840.78 is: 244,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,071.67 : 441,707.67 = 176,840.78 : x
  2. Step 2: Convert to fraction form
    320,071.67/441,707.67 = 176,840.78/x
  3. Step 3: Cross multiply
    320,071.67x = 441,707.67 × 176,840.78
  4. Step 4: Simplify right side
    320,071.67x = 78,111,928,894.78
  5. Step 5: Solve for x
    x = 78,111,928,894.78/320,071.67
  6. Step 6: Final answer
    x = 244,045.12

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1.5x scale

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.