Home / 385,141.17-531,484.86-213,054.66

Finding the Fourth Proportional to 385,141.17, 531,484.86 and 213,054.66

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Solution

The fourth proportional to 385,141.17, 531,484.86 and 213,054.66 is: 294,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,141.17 : 531,484.86 = 213,054.66 : x
  2. Step 2: Convert to fraction form
    385,141.17/531,484.86 = 213,054.66/x
  3. Step 3: Cross multiply
    385,141.17x = 531,484.86 × 213,054.66
  4. Step 4: Simplify right side
    385,141.17x = 113,235,326,142.45
  5. Step 5: Solve for x
    x = 113,235,326,142.45/385,141.17
  6. Step 6: Final answer
    x = 294,009.92

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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.