Home / 385,272.06-531,646.57-215,473.38

Finding the Fourth Proportional to 385,272.06, 531,646.57 and 215,473.38

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Solution

The fourth proportional to 385,272.06, 531,646.57 and 215,473.38 is: 297,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,272.06 : 531,646.57 = 215,473.38 : x
  2. Step 2: Convert to fraction form
    385,272.06/531,646.57 = 215,473.38/x
  3. Step 3: Cross multiply
    385,272.06x = 531,646.57 × 215,473.38
  4. Step 4: Simplify right side
    385,272.06x = 114,555,683,403.31
  5. Step 5: Solve for x
    x = 114,555,683,403.31/385,272.06
  6. Step 6: Final answer
    x = 297,337.12

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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.