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Finding the Fourth Proportional to 292,123.74, 438,141.75 and 92,418.18

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Solution

The fourth proportional to 292,123.74, 438,141.75 and 92,418.18 is: 138,613.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,123.74 : 438,141.75 = 92,418.18 : x
  2. Step 2: Convert to fraction form
    292,123.74/438,141.75 = 92,418.18/x
  3. Step 3: Cross multiply
    292,123.74x = 438,141.75 × 92,418.18
  4. Step 4: Simplify right side
    292,123.74x = 40,492,263,117.02
  5. Step 5: Solve for x
    x = 40,492,263,117.02/292,123.74
  6. Step 6: Final answer
    x = 138,613.39

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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.