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Finding the Fourth Proportional to 255,595.56, 383,102.74 and 155,535.45

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Solution

The fourth proportional to 255,595.56, 383,102.74 and 155,535.45 is: 233,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,595.56 : 383,102.74 = 155,535.45 : x
  2. Step 2: Convert to fraction form
    255,595.56/383,102.74 = 155,535.45/x
  3. Step 3: Cross multiply
    255,595.56x = 383,102.74 × 155,535.45
  4. Step 4: Simplify right side
    255,595.56x = 59,586,057,062.13
  5. Step 5: Solve for x
    x = 59,586,057,062.13/255,595.56
  6. Step 6: Final answer
    x = 233,126.34

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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.