Home / 389,427.90-584,295.45-152,730.30

Finding the Fourth Proportional to 389,427.90, 584,295.45 and 152,730.30

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Solution

The fourth proportional to 389,427.90, 584,295.45 and 152,730.30 is: 229,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,427.90 : 584,295.45 = 152,730.30 : x
  2. Step 2: Convert to fraction form
    389,427.90/584,295.45 = 152,730.30/x
  3. Step 3: Cross multiply
    389,427.90x = 584,295.45 × 152,730.30
  4. Step 4: Simplify right side
    389,427.90x = 89,239,619,367.14
  5. Step 5: Solve for x
    x = 89,239,619,367.14/389,427.90
  6. Step 6: Final answer
    x = 229,155.69

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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.