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Finding the Fourth Proportional to 315,194.39, 472,368.15 and 295,016.88

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Solution

The fourth proportional to 315,194.39, 472,368.15 and 295,016.88 is: 442,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,194.39 : 472,368.15 = 295,016.88 : x
  2. Step 2: Convert to fraction form
    315,194.39/472,368.15 = 295,016.88/x
  3. Step 3: Cross multiply
    315,194.39x = 472,368.15 × 295,016.88
  4. Step 4: Simplify right side
    315,194.39x = 139,356,577,824.37
  5. Step 5: Solve for x
    x = 139,356,577,824.37/315,194.39
  6. Step 6: Final answer
    x = 442,128.99

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1.5x scale

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.