Home / 289,289.17-433,962.31-99,724.59

Finding the Fourth Proportional to 289,289.17, 433,962.31 and 99,724.59

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Solution

The fourth proportional to 289,289.17, 433,962.31 and 99,724.59 is: 149,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,289.17 : 433,962.31 = 99,724.59 : x
  2. Step 2: Convert to fraction form
    289,289.17/433,962.31 = 99,724.59/x
  3. Step 3: Cross multiply
    289,289.17x = 433,962.31 × 99,724.59
  4. Step 4: Simplify right side
    289,289.17x = 43,276,714,598.39
  5. Step 5: Solve for x
    x = 43,276,714,598.39/289,289.17
  6. Step 6: Final answer
    x = 149,596.73

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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.