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Finding the Fourth Proportional to 434,033.80, 651,050.70 and 266,072.20

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Solution

The fourth proportional to 434,033.80, 651,050.70 and 266,072.20 is: 399,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,033.80 : 651,050.70 = 266,072.20 : x
  2. Step 2: Convert to fraction form
    434,033.80/651,050.70 = 266,072.20/x
  3. Step 3: Cross multiply
    434,033.80x = 651,050.70 × 266,072.20
  4. Step 4: Simplify right side
    434,033.80x = 173,226,492,060.54
  5. Step 5: Solve for x
    x = 173,226,492,060.54/434,033.80
  6. Step 6: Final answer
    x = 399,108.30

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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.