Home / 459,637.20-689,455.80-144,093.60

Finding the Fourth Proportional to 459,637.20, 689,455.80 and 144,093.60

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Solution

The fourth proportional to 459,637.20, 689,455.80 and 144,093.60 is: 216,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,637.20 : 689,455.80 = 144,093.60 : x
  2. Step 2: Convert to fraction form
    459,637.20/689,455.80 = 144,093.60/x
  3. Step 3: Cross multiply
    459,637.20x = 689,455.80 × 144,093.60
  4. Step 4: Simplify right side
    459,637.20x = 99,346,168,262.88
  5. Step 5: Solve for x
    x = 99,346,168,262.88/459,637.20
  6. Step 6: Final answer
    x = 216,140.40

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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.