Home / 385,427.07-577,808.37-148,935.69

Finding the Fourth Proportional to 385,427.07, 577,808.37 and 148,935.69

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Solution

The fourth proportional to 385,427.07, 577,808.37 and 148,935.69 is: 223,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,427.07 : 577,808.37 = 148,935.69 : x
  2. Step 2: Convert to fraction form
    385,427.07/577,808.37 = 148,935.69/x
  3. Step 3: Cross multiply
    385,427.07x = 577,808.37 × 148,935.69
  4. Step 4: Simplify right side
    385,427.07x = 86,056,288,273.73
  5. Step 5: Solve for x
    x = 86,056,288,273.73/385,427.07
  6. Step 6: Final answer
    x = 223,275.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.