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Finding the Fourth Proportional to 292,352, 403,445.79 and 158,216

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Solution

The fourth proportional to 292,352, 403,445.79 and 158,216 is: 218,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,352 : 403,445.79 = 158,216 : x
  2. Step 2: Convert to fraction form
    292,352/403,445.79 = 158,216/x
  3. Step 3: Cross multiply
    292,352x = 403,445.79 × 158,216
  4. Step 4: Simplify right side
    292,352x = 63,831,579,110.64
  5. Step 5: Solve for x
    x = 63,831,579,110.64/292,352
  6. Step 6: Final answer
    x = 218,338.10

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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.