Home / 385,841.28-532,464.66-213,762.90

Finding the Fourth Proportional to 385,841.28, 532,464.66 and 213,762.90

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Solution

The fourth proportional to 385,841.28, 532,464.66 and 213,762.90 is: 294,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,841.28 : 532,464.66 = 213,762.90 : x
  2. Step 2: Convert to fraction form
    385,841.28/532,464.66 = 213,762.90/x
  3. Step 3: Cross multiply
    385,841.28x = 532,464.66 × 213,762.90
  4. Step 4: Simplify right side
    385,841.28x = 113,821,189,869.11
  5. Step 5: Solve for x
    x = 113,821,189,869.11/385,841.28
  6. Step 6: Final answer
    x = 294,994.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.