Home / 459,501.81-689,253-143,983.32

Finding the Fourth Proportional to 459,501.81, 689,253 and 143,983.32

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Solution

The fourth proportional to 459,501.81, 689,253 and 143,983.32 is: 215,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,501.81 : 689,253 = 143,983.32 : x
  2. Step 2: Convert to fraction form
    459,501.81/689,253 = 143,983.32/x
  3. Step 3: Cross multiply
    459,501.81x = 689,253 × 143,983.32
  4. Step 4: Simplify right side
    459,501.81x = 99,240,935,259.96
  5. Step 5: Solve for x
    x = 99,240,935,259.96/459,501.81
  6. Step 6: Final answer
    x = 215,975.07

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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.