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Finding the Fourth Proportional to 270,953.64, 406,443.42 and 130,830.12

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Solution

The fourth proportional to 270,953.64, 406,443.42 and 130,830.12 is: 196,251.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,953.64 : 406,443.42 = 130,830.12 : x
  2. Step 2: Convert to fraction form
    270,953.64/406,443.42 = 130,830.12/x
  3. Step 3: Cross multiply
    270,953.64x = 406,443.42 × 130,830.12
  4. Step 4: Simplify right side
    270,953.64x = 53,175,041,411.81
  5. Step 5: Solve for x
    x = 53,175,041,411.81/270,953.64
  6. Step 6: Final answer
    x = 196,251.44

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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.