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Finding the Fourth Proportional to 304,955.79, 420,841.47 and 168,992.03

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Solution

The fourth proportional to 304,955.79, 420,841.47 and 168,992.03 is: 233,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,955.79 : 420,841.47 = 168,992.03 : x
  2. Step 2: Convert to fraction form
    304,955.79/420,841.47 = 168,992.03/x
  3. Step 3: Cross multiply
    304,955.79x = 420,841.47 × 168,992.03
  4. Step 4: Simplify right side
    304,955.79x = 71,118,852,219.28
  5. Step 5: Solve for x
    x = 71,118,852,219.28/304,955.79
  6. Step 6: Final answer
    x = 233,210.37

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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.