Home / 283,613.64-391,368.39-156,289.23

Finding the Fourth Proportional to 283,613.64, 391,368.39 and 156,289.23

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Solution

The fourth proportional to 283,613.64, 391,368.39 and 156,289.23 is: 215,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,613.64 : 391,368.39 = 156,289.23 : x
  2. Step 2: Convert to fraction form
    283,613.64/391,368.39 = 156,289.23/x
  3. Step 3: Cross multiply
    283,613.64x = 391,368.39 × 156,289.23
  4. Step 4: Simplify right side
    283,613.64x = 61,166,664,319.44
  5. Step 5: Solve for x
    x = 61,166,664,319.44/283,613.64
  6. Step 6: Final answer
    x = 215,668.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.