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Finding the Fourth Proportional to 383,589.60, 575,384.40 and 170,307.42

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Solution

The fourth proportional to 383,589.60, 575,384.40 and 170,307.42 is: 255,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,589.60 : 575,384.40 = 170,307.42 : x
  2. Step 2: Convert to fraction form
    383,589.60/575,384.40 = 170,307.42/x
  3. Step 3: Cross multiply
    383,589.60x = 575,384.40 × 170,307.42
  4. Step 4: Simplify right side
    383,589.60x = 97,992,232,672.25
  5. Step 5: Solve for x
    x = 97,992,232,672.25/383,589.60
  6. Step 6: Final answer
    x = 255,461.13

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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.