Home / 385,854.24-578,821.48-105,371.52

Finding the Fourth Proportional to 385,854.24, 578,821.48 and 105,371.52

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Solution

The fourth proportional to 385,854.24, 578,821.48 and 105,371.52 is: 158,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,854.24 : 578,821.48 = 105,371.52 : x
  2. Step 2: Convert to fraction form
    385,854.24/578,821.48 = 105,371.52/x
  3. Step 3: Cross multiply
    385,854.24x = 578,821.48 × 105,371.52
  4. Step 4: Simplify right side
    385,854.24x = 60,991,299,156.25
  5. Step 5: Solve for x
    x = 60,991,299,156.25/385,854.24
  6. Step 6: Final answer
    x = 158,068.24

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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.