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Finding the Fourth Proportional to 292,274.13, 403,339.52 and 158,138.13

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Solution

The fourth proportional to 292,274.13, 403,339.52 and 158,138.13 is: 218,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,274.13 : 403,339.52 = 158,138.13 : x
  2. Step 2: Convert to fraction form
    292,274.13/403,339.52 = 158,138.13/x
  3. Step 3: Cross multiply
    292,274.13x = 403,339.52 × 158,138.13
  4. Step 4: Simplify right side
    292,274.13x = 63,783,357,447.90
  5. Step 5: Solve for x
    x = 63,783,357,447.90/292,274.13
  6. Step 6: Final answer
    x = 218,231.28

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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.