Home / 384,864.58-531,111.78-215,098.70

Finding the Fourth Proportional to 384,864.58, 531,111.78 and 215,098.70

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Solution

The fourth proportional to 384,864.58, 531,111.78 and 215,098.70 is: 296,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,864.58 : 531,111.78 = 215,098.70 : x
  2. Step 2: Convert to fraction form
    384,864.58/531,111.78 = 215,098.70/x
  3. Step 3: Cross multiply
    384,864.58x = 531,111.78 × 215,098.70
  4. Step 4: Simplify right side
    384,864.58x = 114,241,455,298.21
  5. Step 5: Solve for x
    x = 114,241,455,298.21/384,864.58
  6. Step 6: Final answer
    x = 296,835.46

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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.