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Finding the Fourth Proportional to 383,300.55, 575,031.06 and 130,561.11

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Solution

The fourth proportional to 383,300.55, 575,031.06 and 130,561.11 is: 195,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,300.55 : 575,031.06 = 130,561.11 : x
  2. Step 2: Convert to fraction form
    383,300.55/575,031.06 = 130,561.11/x
  3. Step 3: Cross multiply
    383,300.55x = 575,031.06 × 130,561.11
  4. Step 4: Simplify right side
    383,300.55x = 75,076,693,478.08
  5. Step 5: Solve for x
    x = 75,076,693,478.08/383,300.55
  6. Step 6: Final answer
    x = 195,868.99

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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.