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Finding the Fourth Proportional to 292,615.20, 403,808.98 and 158,479.20

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Solution

The fourth proportional to 292,615.20, 403,808.98 and 158,479.20 is: 218,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,615.20 : 403,808.98 = 158,479.20 : x
  2. Step 2: Convert to fraction form
    292,615.20/403,808.98 = 158,479.20/x
  3. Step 3: Cross multiply
    292,615.20x = 403,808.98 × 158,479.20
  4. Step 4: Simplify right side
    292,615.20x = 63,995,324,103.22
  5. Step 5: Solve for x
    x = 63,995,324,103.22/292,615.20
  6. Step 6: Final answer
    x = 218,701.30

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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.