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Finding the Fourth Proportional to 316,099.40, 474,149.10 and 166,281.80

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Solution

The fourth proportional to 316,099.40, 474,149.10 and 166,281.80 is: 249,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,099.40 : 474,149.10 = 166,281.80 : x
  2. Step 2: Convert to fraction form
    316,099.40/474,149.10 = 166,281.80/x
  3. Step 3: Cross multiply
    316,099.40x = 474,149.10 × 166,281.80
  4. Step 4: Simplify right side
    316,099.40x = 78,842,365,816.38
  5. Step 5: Solve for x
    x = 78,842,365,816.38/316,099.40
  6. Step 6: Final answer
    x = 249,422.70

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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.