Home / 459,658.20-689,487.30-144,114.60

Finding the Fourth Proportional to 459,658.20, 689,487.30 and 144,114.60

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Solution

The fourth proportional to 459,658.20, 689,487.30 and 144,114.60 is: 216,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,658.20 : 689,487.30 = 144,114.60 : x
  2. Step 2: Convert to fraction form
    459,658.20/689,487.30 = 144,114.60/x
  3. Step 3: Cross multiply
    459,658.20x = 689,487.30 × 144,114.60
  4. Step 4: Simplify right side
    459,658.20x = 99,365,186,444.58
  5. Step 5: Solve for x
    x = 99,365,186,444.58/459,658.20
  6. Step 6: Final answer
    x = 216,171.90

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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.