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Finding the Fourth Proportional to 255,701.60, 383,552.40 and 145,109.60

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Solution

The fourth proportional to 255,701.60, 383,552.40 and 145,109.60 is: 217,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,701.60 : 383,552.40 = 145,109.60 : x
  2. Step 2: Convert to fraction form
    255,701.60/383,552.40 = 145,109.60/x
  3. Step 3: Cross multiply
    255,701.60x = 383,552.40 × 145,109.60
  4. Step 4: Simplify right side
    255,701.60x = 55,657,135,343.04
  5. Step 5: Solve for x
    x = 55,657,135,343.04/255,701.60
  6. Step 6: Final answer
    x = 217,664.40

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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.