Home / 286,323.76-429,390.20-115,501.36

Finding the Fourth Proportional to 286,323.76, 429,390.20 and 115,501.36

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Solution

The fourth proportional to 286,323.76, 429,390.20 and 115,501.36 is: 173,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,323.76 : 429,390.20 = 115,501.36 : x
  2. Step 2: Convert to fraction form
    286,323.76/429,390.20 = 115,501.36/x
  3. Step 3: Cross multiply
    286,323.76x = 429,390.20 × 115,501.36
  4. Step 4: Simplify right side
    286,323.76x = 49,595,152,070.67
  5. Step 5: Solve for x
    x = 49,595,152,070.67/286,323.76
  6. Step 6: Final answer
    x = 173,213.54

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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.