Home / 389,277.55-537,111.16-219,478.87

Finding the Fourth Proportional to 389,277.55, 537,111.16 and 219,478.87

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Solution

The fourth proportional to 389,277.55, 537,111.16 and 219,478.87 is: 302,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,277.55 : 537,111.16 = 219,478.87 : x
  2. Step 2: Convert to fraction form
    389,277.55/537,111.16 = 219,478.87/x
  3. Step 3: Cross multiply
    389,277.55x = 537,111.16 × 219,478.87
  4. Step 4: Simplify right side
    389,277.55x = 117,884,550,461.19
  5. Step 5: Solve for x
    x = 117,884,550,461.19/389,277.55
  6. Step 6: Final answer
    x = 302,829.05

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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.