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Finding the Fourth Proportional to 309,292.80, 427,028.76 and 237,544.08

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Solution

The fourth proportional to 309,292.80, 427,028.76 and 237,544.08 is: 327,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,292.80 : 427,028.76 = 237,544.08 : x
  2. Step 2: Convert to fraction form
    309,292.80/427,028.76 = 237,544.08/x
  3. Step 3: Cross multiply
    309,292.80x = 427,028.76 × 237,544.08
  4. Step 4: Simplify right side
    309,292.80x = 101,438,153,927.74
  5. Step 5: Solve for x
    x = 101,438,153,927.74/309,292.80
  6. Step 6: Final answer
    x = 327,968.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.