Home / 304,941.55-420,828.56-168,962.78

Finding the Fourth Proportional to 304,941.55, 420,828.56 and 168,962.78

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Solution

The fourth proportional to 304,941.55, 420,828.56 and 168,962.78 is: 233,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,941.55 : 420,828.56 = 168,962.78 : x
  2. Step 2: Convert to fraction form
    304,941.55/420,828.56 = 168,962.78/x
  3. Step 3: Cross multiply
    304,941.55x = 420,828.56 × 168,962.78
  4. Step 4: Simplify right side
    304,941.55x = 71,104,363,401.00
  5. Step 5: Solve for x
    x = 71,104,363,401.00/304,941.55
  6. Step 6: Final answer
    x = 233,173.75

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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.