Home / 287,822.53-431,833.34-98,416.22

Finding the Fourth Proportional to 287,822.53, 431,833.34 and 98,416.22

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Solution

The fourth proportional to 287,822.53, 431,833.34 and 98,416.22 is: 147,658.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,822.53 : 431,833.34 = 98,416.22 : x
  2. Step 2: Convert to fraction form
    287,822.53/431,833.34 = 98,416.22/x
  3. Step 3: Cross multiply
    287,822.53x = 431,833.34 × 98,416.22
  4. Step 4: Simplify right side
    287,822.53x = 42,499,403,079.65
  5. Step 5: Solve for x
    x = 42,499,403,079.65/287,822.53
  6. Step 6: Final answer
    x = 147,658.36

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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.