Home / 384,145.47-530,143.79-214,390.53

Finding the Fourth Proportional to 384,145.47, 530,143.79 and 214,390.53

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Solution

The fourth proportional to 384,145.47, 530,143.79 and 214,390.53 is: 295,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,145.47 : 530,143.79 = 214,390.53 : x
  2. Step 2: Convert to fraction form
    384,145.47/530,143.79 = 214,390.53/x
  3. Step 3: Cross multiply
    384,145.47x = 530,143.79 × 214,390.53
  4. Step 4: Simplify right side
    384,145.47x = 113,657,807,042.36
  5. Step 5: Solve for x
    x = 113,657,807,042.36/384,145.47
  6. Step 6: Final answer
    x = 295,871.79

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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.