Home / 384,890.10-577,663.20-171,985.65

Finding the Fourth Proportional to 384,890.10, 577,663.20 and 171,985.65

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Solution

The fourth proportional to 384,890.10, 577,663.20 and 171,985.65 is: 258,125.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,890.10 : 577,663.20 = 171,985.65 : x
  2. Step 2: Convert to fraction form
    384,890.10/577,663.20 = 171,985.65/x
  3. Step 3: Cross multiply
    384,890.10x = 577,663.20 × 171,985.65
  4. Step 4: Simplify right side
    384,890.10x = 99,349,780,933.08
  5. Step 5: Solve for x
    x = 99,349,780,933.08/384,890.10
  6. Step 6: Final answer
    x = 258,125.06

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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.