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Finding the Fourth Proportional to 177,720.80, 266,192.40 and 107,477.60

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Solution

The fourth proportional to 177,720.80, 266,192.40 and 107,477.60 is: 160,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,720.80 : 266,192.40 = 107,477.60 : x
  2. Step 2: Convert to fraction form
    177,720.80/266,192.40 = 107,477.60/x
  3. Step 3: Cross multiply
    177,720.80x = 266,192.40 × 107,477.60
  4. Step 4: Simplify right side
    177,720.80x = 28,609,720,290.24
  5. Step 5: Solve for x
    x = 28,609,720,290.24/177,720.80
  6. Step 6: Final answer
    x = 160,981.27

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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.