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Finding the Fourth Proportional to 188,613.76, 282,744.87 and 129,477.28

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Solution

The fourth proportional to 188,613.76, 282,744.87 and 129,477.28 is: 194,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,613.76 : 282,744.87 = 129,477.28 : x
  2. Step 2: Convert to fraction form
    188,613.76/282,744.87 = 129,477.28/x
  3. Step 3: Cross multiply
    188,613.76x = 282,744.87 × 129,477.28
  4. Step 4: Simplify right side
    188,613.76x = 36,609,036,701.55
  5. Step 5: Solve for x
    x = 36,609,036,701.55/188,613.76
  6. Step 6: Final answer
    x = 194,095.26

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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.