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Finding the Fourth Proportional to 292,359.90, 438,021.45 and 181,422.30

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Solution

The fourth proportional to 292,359.90, 438,021.45 and 181,422.30 is: 271,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,359.90 : 438,021.45 = 181,422.30 : x
  2. Step 2: Convert to fraction form
    292,359.90/438,021.45 = 181,422.30/x
  3. Step 3: Cross multiply
    292,359.90x = 438,021.45 × 181,422.30
  4. Step 4: Simplify right side
    292,359.90x = 79,466,858,908.34
  5. Step 5: Solve for x
    x = 79,466,858,908.34/292,359.90
  6. Step 6: Final answer
    x = 271,811.76

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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.