Home / 385,273.02-577,913.45-172,051.80

Finding the Fourth Proportional to 385,273.02, 577,913.45 and 172,051.80

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Solution

The fourth proportional to 385,273.02, 577,913.45 and 172,051.80 is: 258,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,273.02 : 577,913.45 = 172,051.80 : x
  2. Step 2: Convert to fraction form
    385,273.02/577,913.45 = 172,051.80/x
  3. Step 3: Cross multiply
    385,273.02x = 577,913.45 × 172,051.80
  4. Step 4: Simplify right side
    385,273.02x = 99,431,048,456.45
  5. Step 5: Solve for x
    x = 99,431,048,456.45/385,273.02
  6. Step 6: Final answer
    x = 258,079.45

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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.