Home / 458,803.28-688,088.04-143,292.08

Finding the Fourth Proportional to 458,803.28, 688,088.04 and 143,292.08

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Solution

The fourth proportional to 458,803.28, 688,088.04 and 143,292.08 is: 214,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,803.28 : 688,088.04 = 143,292.08 : x
  2. Step 2: Convert to fraction form
    458,803.28/688,088.04 = 143,292.08/x
  3. Step 3: Cross multiply
    458,803.28x = 688,088.04 × 143,292.08
  4. Step 4: Simplify right side
    458,803.28x = 98,597,566,474.72
  5. Step 5: Solve for x
    x = 98,597,566,474.72/458,803.28
  6. Step 6: Final answer
    x = 214,901.62

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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.