Home / 292,005.20-438,008.21-81,642.93

Finding the Fourth Proportional to 292,005.20, 438,008.21 and 81,642.93

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Solution

The fourth proportional to 292,005.20, 438,008.21 and 81,642.93 is: 122,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,005.20 : 438,008.21 = 81,642.93 : x
  2. Step 2: Convert to fraction form
    292,005.20/438,008.21 = 81,642.93/x
  3. Step 3: Cross multiply
    292,005.20x = 438,008.21 × 81,642.93
  4. Step 4: Simplify right side
    292,005.20x = 35,760,273,220.24
  5. Step 5: Solve for x
    x = 35,760,273,220.24/292,005.20
  6. Step 6: Final answer
    x = 122,464.51

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1.5x scale

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.