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Finding the Fourth Proportional to 255,622.30, 383,009.64 and 155,479.54

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Solution

The fourth proportional to 255,622.30, 383,009.64 and 155,479.54 is: 232,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,622.30 : 383,009.64 = 155,479.54 : x
  2. Step 2: Convert to fraction form
    255,622.30/383,009.64 = 155,479.54/x
  3. Step 3: Cross multiply
    255,622.30x = 383,009.64 × 155,479.54
  4. Step 4: Simplify right side
    255,622.30x = 59,550,162,642.77
  5. Step 5: Solve for x
    x = 59,550,162,642.77/255,622.30
  6. Step 6: Final answer
    x = 232,961.53

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1.5x scale

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.