Home / 385,459.40-577,942.44-185,381.30

Finding the Fourth Proportional to 385,459.40, 577,942.44 and 185,381.30

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Solution

The fourth proportional to 385,459.40, 577,942.44 and 185,381.30 is: 277,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,459.40 : 577,942.44 = 185,381.30 : x
  2. Step 2: Convert to fraction form
    385,459.40/577,942.44 = 185,381.30/x
  3. Step 3: Cross multiply
    385,459.40x = 577,942.44 × 185,381.30
  4. Step 4: Simplify right side
    385,459.40x = 107,139,720,852.37
  5. Step 5: Solve for x
    x = 107,139,720,852.37/385,459.40
  6. Step 6: Final answer
    x = 277,953.32

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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.