Home / 385,004.15-577,098.98-145,014.21

Finding the Fourth Proportional to 385,004.15, 577,098.98 and 145,014.21

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Solution

The fourth proportional to 385,004.15, 577,098.98 and 145,014.21 is: 217,367.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,004.15 : 577,098.98 = 145,014.21 : x
  2. Step 2: Convert to fraction form
    385,004.15/577,098.98 = 145,014.21/x
  3. Step 3: Cross multiply
    385,004.15x = 577,098.98 × 145,014.21
  4. Step 4: Simplify right side
    385,004.15x = 83,687,555,203.16
  5. Step 5: Solve for x
    x = 83,687,555,203.16/385,004.15
  6. Step 6: Final answer
    x = 217,367.93

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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.