Home / 384,928.20-577,085.10-163,129.80

Finding the Fourth Proportional to 384,928.20, 577,085.10 and 163,129.80

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Solution

The fourth proportional to 384,928.20, 577,085.10 and 163,129.80 is: 244,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,928.20 : 577,085.10 = 163,129.80 : x
  2. Step 2: Convert to fraction form
    384,928.20/577,085.10 = 163,129.80/x
  3. Step 3: Cross multiply
    384,928.20x = 577,085.10 × 163,129.80
  4. Step 4: Simplify right side
    384,928.20x = 94,139,776,945.98
  5. Step 5: Solve for x
    x = 94,139,776,945.98/384,928.20
  6. Step 6: Final answer
    x = 244,564.51

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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.