Home / 228,981.58-315,787.73-142,948.51

Finding the Fourth Proportional to 228,981.58, 315,787.73 and 142,948.51

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Solution

The fourth proportional to 228,981.58, 315,787.73 and 142,948.51 is: 197,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,981.58 : 315,787.73 = 142,948.51 : x
  2. Step 2: Convert to fraction form
    228,981.58/315,787.73 = 142,948.51/x
  3. Step 3: Cross multiply
    228,981.58x = 315,787.73 × 142,948.51
  4. Step 4: Simplify right side
    228,981.58x = 45,141,385,479.78
  5. Step 5: Solve for x
    x = 45,141,385,479.78/228,981.58
  6. Step 6: Final answer
    x = 197,139.81

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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.