Home / 389,276.55-537,109.79-219,477.87

Finding the Fourth Proportional to 389,276.55, 537,109.79 and 219,477.87

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Solution

The fourth proportional to 389,276.55, 537,109.79 and 219,477.87 is: 302,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,276.55 : 537,109.79 = 219,477.87 : x
  2. Step 2: Convert to fraction form
    389,276.55/537,109.79 = 219,477.87/x
  3. Step 3: Cross multiply
    389,276.55x = 537,109.79 × 219,477.87
  4. Step 4: Simplify right side
    389,276.55x = 117,883,711,567.96
  5. Step 5: Solve for x
    x = 117,883,711,567.96/389,276.55
  6. Step 6: Final answer
    x = 302,827.67

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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.