Home / 389,139.30-583,276.95-152,403.30

Finding the Fourth Proportional to 389,139.30, 583,276.95 and 152,403.30

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Solution

The fourth proportional to 389,139.30, 583,276.95 and 152,403.30 is: 228,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,139.30 : 583,276.95 = 152,403.30 : x
  2. Step 2: Convert to fraction form
    389,139.30/583,276.95 = 152,403.30/x
  3. Step 3: Cross multiply
    389,139.30x = 583,276.95 × 152,403.30
  4. Step 4: Simplify right side
    389,139.30x = 88,893,331,993.94
  5. Step 5: Solve for x
    x = 88,893,331,993.94/389,139.30
  6. Step 6: Final answer
    x = 228,435.76

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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.