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Finding the Fourth Proportional to 304,488.30, 420,185.16 and 168,527.82

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Solution

The fourth proportional to 304,488.30, 420,185.16 and 168,527.82 is: 232,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,488.30 : 420,185.16 = 168,527.82 : x
  2. Step 2: Convert to fraction form
    304,488.30/420,185.16 = 168,527.82/x
  3. Step 3: Cross multiply
    304,488.30x = 420,185.16 × 168,527.82
  4. Step 4: Simplify right side
    304,488.30x = 70,812,889,011.15
  5. Step 5: Solve for x
    x = 70,812,889,011.15/304,488.30
  6. Step 6: Final answer
    x = 232,563.58

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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.