Home / 389,484.36-537,513.30-219,656.52

Finding the Fourth Proportional to 389,484.36, 537,513.30 and 219,656.52

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Solution

The fourth proportional to 389,484.36, 537,513.30 and 219,656.52 is: 303,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,484.36 : 537,513.30 = 219,656.52 : x
  2. Step 2: Convert to fraction form
    389,484.36/537,513.30 = 219,656.52/x
  3. Step 3: Cross multiply
    389,484.36x = 537,513.30 × 219,656.52
  4. Step 4: Simplify right side
    389,484.36x = 118,068,300,931.72
  5. Step 5: Solve for x
    x = 118,068,300,931.72/389,484.36
  6. Step 6: Final answer
    x = 303,140.03

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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.