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Finding the Fourth Proportional to 304,518.80, 420,225.21 and 168,553.01

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Solution

The fourth proportional to 304,518.80, 420,225.21 and 168,553.01 is: 232,597.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,518.80 : 420,225.21 = 168,553.01 : x
  2. Step 2: Convert to fraction form
    304,518.80/420,225.21 = 168,553.01/x
  3. Step 3: Cross multiply
    304,518.80x = 420,225.21 × 168,553.01
  4. Step 4: Simplify right side
    304,518.80x = 70,830,221,922.26
  5. Step 5: Solve for x
    x = 70,830,221,922.26/304,518.80
  6. Step 6: Final answer
    x = 232,597.21

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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.