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Finding the Fourth Proportional to 292,612.80, 403,800.82 and 163,554.28

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Solution

The fourth proportional to 292,612.80, 403,800.82 and 163,554.28 is: 225,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,612.80 : 403,800.82 = 163,554.28 : x
  2. Step 2: Convert to fraction form
    292,612.80/403,800.82 = 163,554.28/x
  3. Step 3: Cross multiply
    292,612.80x = 403,800.82 × 163,554.28
  4. Step 4: Simplify right side
    292,612.80x = 66,043,352,378.51
  5. Step 5: Solve for x
    x = 66,043,352,378.51/292,612.80
  6. Step 6: Final answer
    x = 225,702.20

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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.