Home / 283,262.34-390,887.01-155,913.42

Finding the Fourth Proportional to 283,262.34, 390,887.01 and 155,913.42

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Solution

The fourth proportional to 283,262.34, 390,887.01 and 155,913.42 is: 215,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,262.34 : 390,887.01 = 155,913.42 : x
  2. Step 2: Convert to fraction form
    283,262.34/390,887.01 = 155,913.42/x
  3. Step 3: Cross multiply
    283,262.34x = 390,887.01 × 155,913.42
  4. Step 4: Simplify right side
    283,262.34x = 60,944,530,562.67
  5. Step 5: Solve for x
    x = 60,944,530,562.67/283,262.34
  6. Step 6: Final answer
    x = 215,152.25

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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.