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Finding the Fourth Proportional to 304,840, 420,673.53 and 168,870.94

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Solution

The fourth proportional to 304,840, 420,673.53 and 168,870.94 is: 233,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,840 : 420,673.53 = 168,870.94 : x
  2. Step 2: Convert to fraction form
    304,840/420,673.53 = 168,870.94/x
  3. Step 3: Cross multiply
    304,840x = 420,673.53 × 168,870.94
  4. Step 4: Simplify right side
    304,840x = 71,039,534,444.22
  5. Step 5: Solve for x
    x = 71,039,534,444.22/304,840
  6. Step 6: Final answer
    x = 233,038.76

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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.