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Finding the Fourth Proportional to 266,800.95, 400,483.10 and 260,776.98

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Solution

The fourth proportional to 266,800.95, 400,483.10 and 260,776.98 is: 391,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,800.95 : 400,483.10 = 260,776.98 : x
  2. Step 2: Convert to fraction form
    266,800.95/400,483.10 = 260,776.98/x
  3. Step 3: Cross multiply
    266,800.95x = 400,483.10 × 260,776.98
  4. Step 4: Simplify right side
    266,800.95x = 104,436,774,010.98
  5. Step 5: Solve for x
    x = 104,436,774,010.98/266,800.95
  6. Step 6: Final answer
    x = 391,440.79

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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.