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Finding the Fourth Proportional to 210,635.40, 316,244.70 and 166,312.20

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Solution

The fourth proportional to 210,635.40, 316,244.70 and 166,312.20 is: 249,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,635.40 : 316,244.70 = 166,312.20 : x
  2. Step 2: Convert to fraction form
    210,635.40/316,244.70 = 166,312.20/x
  3. Step 3: Cross multiply
    210,635.40x = 316,244.70 × 166,312.20
  4. Step 4: Simplify right side
    210,635.40x = 52,595,351,795.34
  5. Step 5: Solve for x
    x = 52,595,351,795.34/210,635.40
  6. Step 6: Final answer
    x = 249,698.54

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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.