Home / 292,384.35-438,592.19-92,720.43

Finding the Fourth Proportional to 292,384.35, 438,592.19 and 92,720.43

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Solution

The fourth proportional to 292,384.35, 438,592.19 and 92,720.43 is: 139,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,384.35 : 438,592.19 = 92,720.43 : x
  2. Step 2: Convert to fraction form
    292,384.35/438,592.19 = 92,720.43/x
  3. Step 3: Cross multiply
    292,384.35x = 438,592.19 × 92,720.43
  4. Step 4: Simplify right side
    292,384.35x = 40,666,455,987.84
  5. Step 5: Solve for x
    x = 40,666,455,987.84/292,384.35
  6. Step 6: Final answer
    x = 139,085.61

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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.