Home / 611,380.35-917,095.39-155,983.41

Finding the Fourth Proportional to 611,380.35, 917,095.39 and 155,983.41

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Solution

The fourth proportional to 611,380.35, 917,095.39 and 155,983.41 is: 233,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,380.35 : 917,095.39 = 155,983.41 : x
  2. Step 2: Convert to fraction form
    611,380.35/917,095.39 = 155,983.41/x
  3. Step 3: Cross multiply
    611,380.35x = 917,095.39 × 155,983.41
  4. Step 4: Simplify right side
    611,380.35x = 143,051,665,837.52
  5. Step 5: Solve for x
    x = 143,051,665,837.52/611,380.35
  6. Step 6: Final answer
    x = 233,981.46

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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.