Home / 459,284.16-688,921.36-143,743.80

Finding the Fourth Proportional to 459,284.16, 688,921.36 and 143,743.80

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Solution

The fourth proportional to 459,284.16, 688,921.36 and 143,743.80 is: 215,614.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,284.16 : 688,921.36 = 143,743.80 : x
  2. Step 2: Convert to fraction form
    459,284.16/688,921.36 = 143,743.80/x
  3. Step 3: Cross multiply
    459,284.16x = 688,921.36 × 143,743.80
  4. Step 4: Simplify right side
    459,284.16x = 99,028,174,187.57
  5. Step 5: Solve for x
    x = 99,028,174,187.57/459,284.16
  6. Step 6: Final answer
    x = 215,614.17

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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.