Home / 268,330.89-370,288.79-153,605.73

Finding the Fourth Proportional to 268,330.89, 370,288.79 and 153,605.73

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Solution

The fourth proportional to 268,330.89, 370,288.79 and 153,605.73 is: 211,971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,330.89 : 370,288.79 = 153,605.73 : x
  2. Step 2: Convert to fraction form
    268,330.89/370,288.79 = 153,605.73/x
  3. Step 3: Cross multiply
    268,330.89x = 370,288.79 × 153,605.73
  4. Step 4: Simplify right side
    268,330.89x = 56,878,479,898.77
  5. Step 5: Solve for x
    x = 56,878,479,898.77/268,330.89
  6. Step 6: Final answer
    x = 211,971.42

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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.