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Finding the Fourth Proportional to 371,862.51, 512,994.98 and 269,663.77

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Solution

The fourth proportional to 371,862.51, 512,994.98 and 269,663.77 is: 372,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,862.51 : 512,994.98 = 269,663.77 : x
  2. Step 2: Convert to fraction form
    371,862.51/512,994.98 = 269,663.77/x
  3. Step 3: Cross multiply
    371,862.51x = 512,994.98 × 269,663.77
  4. Step 4: Simplify right side
    371,862.51x = 138,336,161,613.28
  5. Step 5: Solve for x
    x = 138,336,161,613.28/371,862.51
  6. Step 6: Final answer
    x = 372,008.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.