Home / 379,421.61-523,631.67-216,085.05

Finding the Fourth Proportional to 379,421.61, 523,631.67 and 216,085.05

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Solution

The fourth proportional to 379,421.61, 523,631.67 and 216,085.05 is: 298,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,421.61 : 523,631.67 = 216,085.05 : x
  2. Step 2: Convert to fraction form
    379,421.61/523,631.67 = 216,085.05/x
  3. Step 3: Cross multiply
    379,421.61x = 523,631.67 × 216,085.05
  4. Step 4: Simplify right side
    379,421.61x = 113,148,975,593.53
  5. Step 5: Solve for x
    x = 113,148,975,593.53/379,421.61
  6. Step 6: Final answer
    x = 298,214.37

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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.