Home / 383,071.04-528,646.56-213,320.96

Finding the Fourth Proportional to 383,071.04, 528,646.56 and 213,320.96

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Solution

The fourth proportional to 383,071.04, 528,646.56 and 213,320.96 is: 294,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,071.04 : 528,646.56 = 213,320.96 : x
  2. Step 2: Convert to fraction form
    383,071.04/528,646.56 = 213,320.96/x
  3. Step 3: Cross multiply
    383,071.04x = 528,646.56 × 213,320.96
  4. Step 4: Simplify right side
    383,071.04x = 112,771,391,679.90
  5. Step 5: Solve for x
    x = 112,771,391,679.90/383,071.04
  6. Step 6: Final answer
    x = 294,387.67

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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.