Home / 390,216.16-585,263.22-123,941.62

Finding the Fourth Proportional to 390,216.16, 585,263.22 and 123,941.62

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Solution

The fourth proportional to 390,216.16, 585,263.22 and 123,941.62 is: 185,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,216.16 : 585,263.22 = 123,941.62 : x
  2. Step 2: Convert to fraction form
    390,216.16/585,263.22 = 123,941.62/x
  3. Step 3: Cross multiply
    390,216.16x = 585,263.22 × 123,941.62
  4. Step 4: Simplify right side
    390,216.16x = 72,538,471,613.22
  5. Step 5: Solve for x
    x = 72,538,471,613.22/390,216.16
  6. Step 6: Final answer
    x = 185,893.05

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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.