Home / 385,536.40-532,040.16-215,770.52

Finding the Fourth Proportional to 385,536.40, 532,040.16 and 215,770.52

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Solution

The fourth proportional to 385,536.40, 532,040.16 and 215,770.52 is: 297,763.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,536.40 : 532,040.16 = 215,770.52 : x
  2. Step 2: Convert to fraction form
    385,536.40/532,040.16 = 215,770.52/x
  3. Step 3: Cross multiply
    385,536.40x = 532,040.16 × 215,770.52
  4. Step 4: Simplify right side
    385,536.40x = 114,798,581,984.08
  5. Step 5: Solve for x
    x = 114,798,581,984.08/385,536.40
  6. Step 6: Final answer
    x = 297,763.28

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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.