Home / 283,029.96-390,588.66-153,976.47

Finding the Fourth Proportional to 283,029.96, 390,588.66 and 153,976.47

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Solution

The fourth proportional to 283,029.96, 390,588.66 and 153,976.47 is: 212,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,029.96 : 390,588.66 = 153,976.47 : x
  2. Step 2: Convert to fraction form
    283,029.96/390,588.66 = 153,976.47/x
  3. Step 3: Cross multiply
    283,029.96x = 390,588.66 × 153,976.47
  4. Step 4: Simplify right side
    283,029.96x = 60,141,463,088.83
  5. Step 5: Solve for x
    x = 60,141,463,088.83/283,029.96
  6. Step 6: Final answer
    x = 212,491.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.