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Finding the Fourth Proportional to 177,860.40, 266,790.60 and 169,987.20

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Solution

The fourth proportional to 177,860.40, 266,790.60 and 169,987.20 is: 254,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,860.40 : 266,790.60 = 169,987.20 : x
  2. Step 2: Convert to fraction form
    177,860.40/266,790.60 = 169,987.20/x
  3. Step 3: Cross multiply
    177,860.40x = 266,790.60 × 169,987.20
  4. Step 4: Simplify right side
    177,860.40x = 45,350,987,080.32
  5. Step 5: Solve for x
    x = 45,350,987,080.32/177,860.40
  6. Step 6: Final answer
    x = 254,980.80

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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.