Home / 255,864.11-383,606.63-122,617.49

Finding the Fourth Proportional to 255,864.11, 383,606.63 and 122,617.49

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Solution

The fourth proportional to 255,864.11, 383,606.63 and 122,617.49 is: 183,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,864.11 : 383,606.63 = 122,617.49 : x
  2. Step 2: Convert to fraction form
    255,864.11/383,606.63 = 122,617.49/x
  3. Step 3: Cross multiply
    255,864.11x = 383,606.63 × 122,617.49
  4. Step 4: Simplify right side
    255,864.11x = 47,036,881,504.87
  5. Step 5: Solve for x
    x = 47,036,881,504.87/255,864.11
  6. Step 6: Final answer
    x = 183,835.40

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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.