Home / 259,519.60-389,279.40-166,130.80

Finding the Fourth Proportional to 259,519.60, 389,279.40 and 166,130.80

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Solution

The fourth proportional to 259,519.60, 389,279.40 and 166,130.80 is: 249,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,519.60 : 389,279.40 = 166,130.80 : x
  2. Step 2: Convert to fraction form
    259,519.60/389,279.40 = 166,130.80/x
  3. Step 3: Cross multiply
    259,519.60x = 389,279.40 × 166,130.80
  4. Step 4: Simplify right side
    259,519.60x = 64,671,298,145.52
  5. Step 5: Solve for x
    x = 64,671,298,145.52/259,519.60
  6. Step 6: Final answer
    x = 249,196.20

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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.