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Finding the Fourth Proportional to 304,674.55, 420,445.74 and 168,705.58

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Solution

The fourth proportional to 304,674.55, 420,445.74 and 168,705.58 is: 232,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,674.55 : 420,445.74 = 168,705.58 : x
  2. Step 2: Convert to fraction form
    304,674.55/420,445.74 = 168,705.58/x
  3. Step 3: Cross multiply
    304,674.55x = 420,445.74 × 168,705.58
  4. Step 4: Simplify right side
    304,674.55x = 70,931,540,323.00
  5. Step 5: Solve for x
    x = 70,931,540,323.00/304,674.55
  6. Step 6: Final answer
    x = 232,810.85

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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.