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Finding the Fourth Proportional to 320,800.57, 442,815.39 and 184,888.78

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Solution

The fourth proportional to 320,800.57, 442,815.39 and 184,888.78 is: 255,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,800.57 : 442,815.39 = 184,888.78 : x
  2. Step 2: Convert to fraction form
    320,800.57/442,815.39 = 184,888.78/x
  3. Step 3: Cross multiply
    320,800.57x = 442,815.39 × 184,888.78
  4. Step 4: Simplify right side
    320,800.57x = 81,871,596,115.29
  5. Step 5: Solve for x
    x = 81,871,596,115.29/320,800.57
  6. Step 6: Final answer
    x = 255,210.26

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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.