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Finding the Fourth Proportional to 292,344.40, 403,436.56 and 158,208.40

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Solution

The fourth proportional to 292,344.40, 403,436.56 and 158,208.40 is: 218,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,344.40 : 403,436.56 = 158,208.40 : x
  2. Step 2: Convert to fraction form
    292,344.40/403,436.56 = 158,208.40/x
  3. Step 3: Cross multiply
    292,344.40x = 403,436.56 × 158,208.40
  4. Step 4: Simplify right side
    292,344.40x = 63,827,052,659.10
  5. Step 5: Solve for x
    x = 63,827,052,659.10/292,344.40
  6. Step 6: Final answer
    x = 218,328.29

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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.