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Finding the Fourth Proportional to 166,493.60, 249,970.80 and 131,472.80

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Solution

The fourth proportional to 166,493.60, 249,970.80 and 131,472.80 is: 197,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,493.60 : 249,970.80 = 131,472.80 : x
  2. Step 2: Convert to fraction form
    166,493.60/249,970.80 = 131,472.80/x
  3. Step 3: Cross multiply
    166,493.60x = 249,970.80 × 131,472.80
  4. Step 4: Simplify right side
    166,493.60x = 32,864,360,994.24
  5. Step 5: Solve for x
    x = 32,864,360,994.24/166,493.60
  6. Step 6: Final answer
    x = 197,391.14

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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.