Home / 312,857.02-469,373.01-102,642.58

Finding the Fourth Proportional to 312,857.02, 469,373.01 and 102,642.58

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Solution

The fourth proportional to 312,857.02, 469,373.01 and 102,642.58 is: 153,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,857.02 : 469,373.01 = 102,642.58 : x
  2. Step 2: Convert to fraction form
    312,857.02/469,373.01 = 102,642.58/x
  3. Step 3: Cross multiply
    312,857.02x = 469,373.01 × 102,642.58
  4. Step 4: Simplify right side
    312,857.02x = 48,177,656,728.77
  5. Step 5: Solve for x
    x = 48,177,656,728.77/312,857.02
  6. Step 6: Final answer
    x = 153,992.57

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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.