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Finding the Fourth Proportional to 303,742.60, 455,613.90 and 170,627.20

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Solution

The fourth proportional to 303,742.60, 455,613.90 and 170,627.20 is: 255,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,742.60 : 455,613.90 = 170,627.20 : x
  2. Step 2: Convert to fraction form
    303,742.60/455,613.90 = 170,627.20/x
  3. Step 3: Cross multiply
    303,742.60x = 455,613.90 × 170,627.20
  4. Step 4: Simplify right side
    303,742.60x = 77,740,124,038.08
  5. Step 5: Solve for x
    x = 77,740,124,038.08/303,742.60
  6. Step 6: Final answer
    x = 255,940.80

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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.