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Finding the Fourth Proportional to 540,970.90, 811,530.18 and 225,354

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Solution

The fourth proportional to 540,970.90, 811,530.18 and 225,354 is: 338,061.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,970.90 : 811,530.18 = 225,354 : x
  2. Step 2: Convert to fraction form
    540,970.90/811,530.18 = 225,354/x
  3. Step 3: Cross multiply
    540,970.90x = 811,530.18 × 225,354
  4. Step 4: Simplify right side
    540,970.90x = 182,881,572,183.72
  5. Step 5: Solve for x
    x = 182,881,572,183.72/540,970.90
  6. Step 6: Final answer
    x = 338,061.76

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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.