Home / 385,317.20-577,980.06-172,095.94

Finding the Fourth Proportional to 385,317.20, 577,980.06 and 172,095.94

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Solution

The fourth proportional to 385,317.20, 577,980.06 and 172,095.94 is: 258,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,317.20 : 577,980.06 = 172,095.94 : x
  2. Step 2: Convert to fraction form
    385,317.20/577,980.06 = 172,095.94/x
  3. Step 3: Cross multiply
    385,317.20x = 577,980.06 × 172,095.94
  4. Step 4: Simplify right side
    385,317.20x = 99,468,021,804.07
  5. Step 5: Solve for x
    x = 99,468,021,804.07/385,317.20
  6. Step 6: Final answer
    x = 258,145.81

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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.