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Finding the Fourth Proportional to 539,018.40, 807,879.60 and 223,312.80

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Solution

The fourth proportional to 539,018.40, 807,879.60 and 223,312.80 is: 334,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,018.40 : 807,879.60 = 223,312.80 : x
  2. Step 2: Convert to fraction form
    539,018.40/807,879.60 = 223,312.80/x
  3. Step 3: Cross multiply
    539,018.40x = 807,879.60 × 223,312.80
  4. Step 4: Simplify right side
    539,018.40x = 180,409,855,538.88
  5. Step 5: Solve for x
    x = 180,409,855,538.88/539,018.40
  6. Step 6: Final answer
    x = 334,700.74

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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.