Home / 385,615.36-578,588.24-149,124.12

Finding the Fourth Proportional to 385,615.36, 578,588.24 and 149,124.12

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Solution

The fourth proportional to 385,615.36, 578,588.24 and 149,124.12 is: 223,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,615.36 : 578,588.24 = 149,124.12 : x
  2. Step 2: Convert to fraction form
    385,615.36/578,588.24 = 149,124.12/x
  3. Step 3: Cross multiply
    385,615.36x = 578,588.24 × 149,124.12
  4. Step 4: Simplify right side
    385,615.36x = 86,281,458,493.79
  5. Step 5: Solve for x
    x = 86,281,458,493.79/385,615.36
  6. Step 6: Final answer
    x = 223,750.06

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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.