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Finding the Fourth Proportional to 292,010.34, 438,012.90 and 92,330.85

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Solution

The fourth proportional to 292,010.34, 438,012.90 and 92,330.85 is: 138,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,010.34 : 438,012.90 = 92,330.85 : x
  2. Step 2: Convert to fraction form
    292,010.34/438,012.90 = 92,330.85/x
  3. Step 3: Cross multiply
    292,010.34x = 438,012.90 × 92,330.85
  4. Step 4: Simplify right side
    292,010.34x = 40,442,103,367.97
  5. Step 5: Solve for x
    x = 40,442,103,367.97/292,010.34
  6. Step 6: Final answer
    x = 138,495.45

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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.