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Finding the Fourth Proportional to 290,231.70, 400,603.23 and 175,510.50

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Solution

The fourth proportional to 290,231.70, 400,603.23 and 175,510.50 is: 242,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,231.70 : 400,603.23 = 175,510.50 : x
  2. Step 2: Convert to fraction form
    290,231.70/400,603.23 = 175,510.50/x
  3. Step 3: Cross multiply
    290,231.70x = 400,603.23 × 175,510.50
  4. Step 4: Simplify right side
    290,231.70x = 70,310,073,198.92
  5. Step 5: Solve for x
    x = 70,310,073,198.92/290,231.70
  6. Step 6: Final answer
    x = 242,254.97

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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.