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Finding the Fourth Proportional to 292,077.70, 403,067.10 and 157,941.70

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Solution

The fourth proportional to 292,077.70, 403,067.10 and 157,941.70 is: 217,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,077.70 : 403,067.10 = 157,941.70 : x
  2. Step 2: Convert to fraction form
    292,077.70/403,067.10 = 157,941.70/x
  3. Step 3: Cross multiply
    292,077.70x = 403,067.10 × 157,941.70
  4. Step 4: Simplify right side
    292,077.70x = 63,661,102,988.07
  5. Step 5: Solve for x
    x = 63,661,102,988.07/292,077.70
  6. Step 6: Final answer
    x = 217,959.48

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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.