Home / 389,029.40-583,053.23-208,667.51

Finding the Fourth Proportional to 389,029.40, 583,053.23 and 208,667.51

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Solution

The fourth proportional to 389,029.40, 583,053.23 and 208,667.51 is: 312,737.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,029.40 : 583,053.23 = 208,667.51 : x
  2. Step 2: Convert to fraction form
    389,029.40/583,053.23 = 208,667.51/x
  3. Step 3: Cross multiply
    389,029.40x = 583,053.23 × 208,667.51
  4. Step 4: Simplify right side
    389,029.40x = 121,664,261,742.95
  5. Step 5: Solve for x
    x = 121,664,261,742.95/389,029.40
  6. Step 6: Final answer
    x = 312,737.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.