Home / 385,632.90-578,614.86-149,141.52

Finding the Fourth Proportional to 385,632.90, 578,614.86 and 149,141.52

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Solution

The fourth proportional to 385,632.90, 578,614.86 and 149,141.52 is: 223,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,632.90 : 578,614.86 = 149,141.52 : x
  2. Step 2: Convert to fraction form
    385,632.90/578,614.86 = 149,141.52/x
  3. Step 3: Cross multiply
    385,632.90x = 578,614.86 × 149,141.52
  4. Step 4: Simplify right side
    385,632.90x = 86,295,499,714.99
  5. Step 5: Solve for x
    x = 86,295,499,714.99/385,632.90
  6. Step 6: Final answer
    x = 223,776.29

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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.