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Finding the Fourth Proportional to 228,895.20, 319,831.20 and 228,895.20

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Solution

The fourth proportional to 228,895.20, 319,831.20 and 228,895.20 is: 319,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,895.20 : 319,831.20 = 228,895.20 : x
  2. Step 2: Convert to fraction form
    228,895.20/319,831.20 = 228,895.20/x
  3. Step 3: Cross multiply
    228,895.20x = 319,831.20 × 228,895.20
  4. Step 4: Simplify right side
    228,895.20x = 73,207,826,490.24
  5. Step 5: Solve for x
    x = 73,207,826,490.24/228,895.20
  6. Step 6: Final answer
    x = 319,831.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.