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Finding the Fourth Proportional to 203,191.40, 304,801.72 and 70,069.74

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Solution

The fourth proportional to 203,191.40, 304,801.72 and 70,069.74 is: 105,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,191.40 : 304,801.72 = 70,069.74 : x
  2. Step 2: Convert to fraction form
    203,191.40/304,801.72 = 70,069.74/x
  3. Step 3: Cross multiply
    203,191.40x = 304,801.72 × 70,069.74
  4. Step 4: Simplify right side
    203,191.40x = 21,357,377,271.95
  5. Step 5: Solve for x
    x = 21,357,377,271.95/203,191.40
  6. Step 6: Final answer
    x = 105,109.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.