Home / 459,943.21-690,029.61-160,428.07

Finding the Fourth Proportional to 459,943.21, 690,029.61 and 160,428.07

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Solution

The fourth proportional to 459,943.21, 690,029.61 and 160,428.07 is: 240,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,943.21 : 690,029.61 = 160,428.07 : x
  2. Step 2: Convert to fraction form
    459,943.21/690,029.61 = 160,428.07/x
  3. Step 3: Cross multiply
    459,943.21x = 690,029.61 × 160,428.07
  4. Step 4: Simplify right side
    459,943.21x = 110,700,118,575.15
  5. Step 5: Solve for x
    x = 110,700,118,575.15/459,943.21
  6. Step 6: Final answer
    x = 240,682.15

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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.