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Finding the Fourth Proportional to 540,264.66, 810,431.55 and 207,840.66

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Solution

The fourth proportional to 540,264.66, 810,431.55 and 207,840.66 is: 311,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,264.66 : 810,431.55 = 207,840.66 : x
  2. Step 2: Convert to fraction form
    540,264.66/810,431.55 = 207,840.66/x
  3. Step 3: Cross multiply
    540,264.66x = 810,431.55 × 207,840.66
  4. Step 4: Simplify right side
    540,264.66x = 168,440,628,236.82
  5. Step 5: Solve for x
    x = 168,440,628,236.82/540,264.66
  6. Step 6: Final answer
    x = 311,774.29

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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.