Home / 459,943.23-690,029.64-160,428.12

Finding the Fourth Proportional to 459,943.23, 690,029.64 and 160,428.12

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Solution

The fourth proportional to 459,943.23, 690,029.64 and 160,428.12 is: 240,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,943.23 : 690,029.64 = 160,428.12 : x
  2. Step 2: Convert to fraction form
    459,943.23/690,029.64 = 160,428.12/x
  3. Step 3: Cross multiply
    459,943.23x = 690,029.64 × 160,428.12
  4. Step 4: Simplify right side
    459,943.23x = 110,700,157,889.48
  5. Step 5: Solve for x
    x = 110,700,157,889.48/459,943.23
  6. Step 6: Final answer
    x = 240,682.22

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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.