Home / 268,623.83-370,728.05-153,917.69

Finding the Fourth Proportional to 268,623.83, 370,728.05 and 153,917.69

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Solution

The fourth proportional to 268,623.83, 370,728.05 and 153,917.69 is: 212,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,623.83 : 370,728.05 = 153,917.69 : x
  2. Step 2: Convert to fraction form
    268,623.83/370,728.05 = 153,917.69/x
  3. Step 3: Cross multiply
    268,623.83x = 370,728.05 × 153,917.69
  4. Step 4: Simplify right side
    268,623.83x = 57,061,602,450.98
  5. Step 5: Solve for x
    x = 57,061,602,450.98/268,623.83
  6. Step 6: Final answer
    x = 212,421.97

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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.