Home / 385,855.24-578,822.98-105,372.52

Finding the Fourth Proportional to 385,855.24, 578,822.98 and 105,372.52

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Solution

The fourth proportional to 385,855.24, 578,822.98 and 105,372.52 is: 158,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,855.24 : 578,822.98 = 105,372.52 : x
  2. Step 2: Convert to fraction form
    385,855.24/578,822.98 = 105,372.52/x
  3. Step 3: Cross multiply
    385,855.24x = 578,822.98 × 105,372.52
  4. Step 4: Simplify right side
    385,855.24x = 60,992,036,036.51
  5. Step 5: Solve for x
    x = 60,992,036,036.51/385,855.24
  6. Step 6: Final answer
    x = 158,069.74

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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.