Home / 384,840.63-531,080.88-215,074.75

Finding the Fourth Proportional to 384,840.63, 531,080.88 and 215,074.75

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Solution

The fourth proportional to 384,840.63, 531,080.88 and 215,074.75 is: 296,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,840.63 : 531,080.88 = 215,074.75 : x
  2. Step 2: Convert to fraction form
    384,840.63/531,080.88 = 215,074.75/x
  3. Step 3: Cross multiply
    384,840.63x = 531,080.88 × 215,074.75
  4. Step 4: Simplify right side
    384,840.63x = 114,222,087,495.78
  5. Step 5: Solve for x
    x = 114,222,087,495.78/384,840.63
  6. Step 6: Final answer
    x = 296,803.61

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1.5x scale

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.