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Finding the Fourth Proportional to 490,803.76, 736,205.08 and 158,379.76

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Solution

The fourth proportional to 490,803.76, 736,205.08 and 158,379.76 is: 237,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,803.76 : 736,205.08 = 158,379.76 : x
  2. Step 2: Convert to fraction form
    490,803.76/736,205.08 = 158,379.76/x
  3. Step 3: Cross multiply
    490,803.76x = 736,205.08 × 158,379.76
  4. Step 4: Simplify right side
    490,803.76x = 116,599,983,881.18
  5. Step 5: Solve for x
    x = 116,599,983,881.18/490,803.76
  6. Step 6: Final answer
    x = 237,569.46

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1.5x scale

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.