Home / 459,325.22-688,943.27-139,479.86

Finding the Fourth Proportional to 459,325.22, 688,943.27 and 139,479.86

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Solution

The fourth proportional to 459,325.22, 688,943.27 and 139,479.86 is: 209,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,325.22 : 688,943.27 = 139,479.86 : x
  2. Step 2: Convert to fraction form
    459,325.22/688,943.27 = 139,479.86/x
  3. Step 3: Cross multiply
    459,325.22x = 688,943.27 × 139,479.86
  4. Step 4: Simplify right side
    459,325.22x = 96,093,706,705.43
  5. Step 5: Solve for x
    x = 96,093,706,705.43/459,325.22
  6. Step 6: Final answer
    x = 209,206.25

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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.