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Finding the Fourth Proportional to 651,663.60, 977,495.40 and 202,380.90

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Solution

The fourth proportional to 651,663.60, 977,495.40 and 202,380.90 is: 303,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,663.60 : 977,495.40 = 202,380.90 : x
  2. Step 2: Convert to fraction form
    651,663.60/977,495.40 = 202,380.90/x
  3. Step 3: Cross multiply
    651,663.60x = 977,495.40 × 202,380.90
  4. Step 4: Simplify right side
    651,663.60x = 197,826,398,797.86
  5. Step 5: Solve for x
    x = 197,826,398,797.86/651,663.60
  6. Step 6: Final answer
    x = 303,571.35

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Similar ratio
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1.5x scale

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.