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Finding the Fourth Proportional to 166,405.70, 249,608.55 and 157,220.30

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Solution

The fourth proportional to 166,405.70, 249,608.55 and 157,220.30 is: 235,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,405.70 : 249,608.55 = 157,220.30 : x
  2. Step 2: Convert to fraction form
    166,405.70/249,608.55 = 157,220.30/x
  3. Step 3: Cross multiply
    166,405.70x = 249,608.55 × 157,220.30
  4. Step 4: Simplify right side
    166,405.70x = 39,243,531,113.57
  5. Step 5: Solve for x
    x = 39,243,531,113.57/166,405.70
  6. Step 6: Final answer
    x = 235,830.45

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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.