Home / 292,131.98-438,246.40-102,543.15

Finding the Fourth Proportional to 292,131.98, 438,246.40 and 102,543.15

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Solution

The fourth proportional to 292,131.98, 438,246.40 and 102,543.15 is: 153,831.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,131.98 : 438,246.40 = 102,543.15 : x
  2. Step 2: Convert to fraction form
    292,131.98/438,246.40 = 102,543.15/x
  3. Step 3: Cross multiply
    292,131.98x = 438,246.40 × 102,543.15
  4. Step 4: Simplify right side
    292,131.98x = 44,939,167,295.21
  5. Step 5: Solve for x
    x = 44,939,167,295.21/292,131.98
  6. Step 6: Final answer
    x = 153,831.73

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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.