Home / 385,350.95-578,081.78-119,132.24

Finding the Fourth Proportional to 385,350.95, 578,081.78 and 119,132.24

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Solution

The fourth proportional to 385,350.95, 578,081.78 and 119,132.24 is: 178,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,350.95 : 578,081.78 = 119,132.24 : x
  2. Step 2: Convert to fraction form
    385,350.95/578,081.78 = 119,132.24/x
  3. Step 3: Cross multiply
    385,350.95x = 578,081.78 × 119,132.24
  4. Step 4: Simplify right side
    385,350.95x = 68,868,174,315.26
  5. Step 5: Solve for x
    x = 68,868,174,315.26/385,350.95
  6. Step 6: Final answer
    x = 178,715.46

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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.