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Finding the Fourth Proportional to 166,645.80, 249,968.70 and 156,148.20

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Solution

The fourth proportional to 166,645.80, 249,968.70 and 156,148.20 is: 234,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,645.80 : 249,968.70 = 156,148.20 : x
  2. Step 2: Convert to fraction form
    166,645.80/249,968.70 = 156,148.20/x
  3. Step 3: Cross multiply
    166,645.80x = 249,968.70 × 156,148.20
  4. Step 4: Simplify right side
    166,645.80x = 39,032,162,561.34
  5. Step 5: Solve for x
    x = 39,032,162,561.34/166,645.80
  6. Step 6: Final answer
    x = 234,222.30

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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.