Home / 459,106.16-688,633.32-143,525.84

Finding the Fourth Proportional to 459,106.16, 688,633.32 and 143,525.84

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Solution

The fourth proportional to 459,106.16, 688,633.32 and 143,525.84 is: 215,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,106.16 : 688,633.32 = 143,525.84 : x
  2. Step 2: Convert to fraction form
    459,106.16/688,633.32 = 143,525.84/x
  3. Step 3: Cross multiply
    459,106.16x = 688,633.32 × 143,525.84
  4. Step 4: Simplify right side
    459,106.16x = 98,836,675,704.99
  5. Step 5: Solve for x
    x = 98,836,675,704.99/459,106.16
  6. Step 6: Final answer
    x = 215,280.66

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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.