Home / 283,135.27-390,726.73-155,810.86

Finding the Fourth Proportional to 283,135.27, 390,726.73 and 155,810.86

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Solution

The fourth proportional to 283,135.27, 390,726.73 and 155,810.86 is: 215,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,135.27 : 390,726.73 = 155,810.86 : x
  2. Step 2: Convert to fraction form
    283,135.27/390,726.73 = 155,810.86/x
  3. Step 3: Cross multiply
    283,135.27x = 390,726.73 × 155,810.86
  4. Step 4: Simplify right side
    283,135.27x = 60,879,466,459.94
  5. Step 5: Solve for x
    x = 60,879,466,459.94/283,135.27
  6. Step 6: Final answer
    x = 215,019.02

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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.