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Finding the Fourth Proportional to 657,503.55, 986,255.33 and 258,157.35

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Solution

The fourth proportional to 657,503.55, 986,255.33 and 258,157.35 is: 387,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,503.55 : 986,255.33 = 258,157.35 : x
  2. Step 2: Convert to fraction form
    657,503.55/986,255.33 = 258,157.35/x
  3. Step 3: Cross multiply
    657,503.55x = 986,255.33 × 258,157.35
  4. Step 4: Simplify right side
    657,503.55x = 254,609,061,125.39
  5. Step 5: Solve for x
    x = 254,609,061,125.39/657,503.55
  6. Step 6: Final answer
    x = 387,236.03

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.