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Finding the Fourth Proportional to 304,744.80, 420,547.44 and 170,609.76

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Solution

The fourth proportional to 304,744.80, 420,547.44 and 170,609.76 is: 235,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,744.80 : 420,547.44 = 170,609.76 : x
  2. Step 2: Convert to fraction form
    304,744.80/420,547.44 = 170,609.76/x
  3. Step 3: Cross multiply
    304,744.80x = 420,547.44 × 170,609.76
  4. Step 4: Simplify right side
    304,744.80x = 71,749,497,807.01
  5. Step 5: Solve for x
    x = 71,749,497,807.01/304,744.80
  6. Step 6: Final answer
    x = 235,441.25

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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.