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Finding the Fourth Proportional to 423,006.88, 634,309.44 and 245,568.40

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Solution

The fourth proportional to 423,006.88, 634,309.44 and 245,568.40 is: 368,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,006.88 : 634,309.44 = 245,568.40 : x
  2. Step 2: Convert to fraction form
    423,006.88/634,309.44 = 245,568.40/x
  3. Step 3: Cross multiply
    423,006.88x = 634,309.44 × 245,568.40
  4. Step 4: Simplify right side
    423,006.88x = 155,766,354,285.70
  5. Step 5: Solve for x
    x = 155,766,354,285.70/423,006.88
  6. Step 6: Final answer
    x = 368,235.98

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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.