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Finding the Fourth Proportional to 270,364.80, 405,547.20 and 130,396.80

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Solution

The fourth proportional to 270,364.80, 405,547.20 and 130,396.80 is: 195,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,364.80 : 405,547.20 = 130,396.80 : x
  2. Step 2: Convert to fraction form
    270,364.80/405,547.20 = 130,396.80/x
  3. Step 3: Cross multiply
    270,364.80x = 405,547.20 × 130,396.80
  4. Step 4: Simplify right side
    270,364.80x = 52,882,057,128.96
  5. Step 5: Solve for x
    x = 52,882,057,128.96/270,364.80
  6. Step 6: Final answer
    x = 195,595.20

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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.