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Finding the Fourth Proportional to 288,289.80, 432,434.70 and 110,802.60

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Solution

The fourth proportional to 288,289.80, 432,434.70 and 110,802.60 is: 166,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,289.80 : 432,434.70 = 110,802.60 : x
  2. Step 2: Convert to fraction form
    288,289.80/432,434.70 = 110,802.60/x
  3. Step 3: Cross multiply
    288,289.80x = 432,434.70 × 110,802.60
  4. Step 4: Simplify right side
    288,289.80x = 47,914,889,090.22
  5. Step 5: Solve for x
    x = 47,914,889,090.22/288,289.80
  6. Step 6: Final answer
    x = 166,203.90

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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.