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Finding the Fourth Proportional to 166,225.80, 249,419.70 and 77,433.60

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Solution

The fourth proportional to 166,225.80, 249,419.70 and 77,433.60 is: 116,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,225.80 : 249,419.70 = 77,433.60 : x
  2. Step 2: Convert to fraction form
    166,225.80/249,419.70 = 77,433.60/x
  3. Step 3: Cross multiply
    166,225.80x = 249,419.70 × 77,433.60
  4. Step 4: Simplify right side
    166,225.80x = 19,313,465,281.92
  5. Step 5: Solve for x
    x = 19,313,465,281.92/166,225.80
  6. Step 6: Final answer
    x = 116,188.13

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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.