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Finding the Fourth Proportional to 540,870.40, 811,228.80 and 185,900.80

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Solution

The fourth proportional to 540,870.40, 811,228.80 and 185,900.80 is: 278,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,870.40 : 811,228.80 = 185,900.80 : x
  2. Step 2: Convert to fraction form
    540,870.40/811,228.80 = 185,900.80/x
  3. Step 3: Cross multiply
    540,870.40x = 811,228.80 × 185,900.80
  4. Step 4: Simplify right side
    540,870.40x = 150,808,082,903.04
  5. Step 5: Solve for x
    x = 150,808,082,903.04/540,870.40
  6. Step 6: Final answer
    x = 278,824.80

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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.