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Finding the Fourth Proportional to 255,798.60, 383,870.70 and 166,835.40

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Solution

The fourth proportional to 255,798.60, 383,870.70 and 166,835.40 is: 250,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,798.60 : 383,870.70 = 166,835.40 : x
  2. Step 2: Convert to fraction form
    255,798.60/383,870.70 = 166,835.40/x
  3. Step 3: Cross multiply
    255,798.60x = 383,870.70 × 166,835.40
  4. Step 4: Simplify right side
    255,798.60x = 64,043,221,782.78
  5. Step 5: Solve for x
    x = 64,043,221,782.78/255,798.60
  6. Step 6: Final answer
    x = 250,365.80

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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.