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Finding the Fourth Proportional to 453,219.20, 679,807.20 and 153,670.40

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Solution

The fourth proportional to 453,219.20, 679,807.20 and 153,670.40 is: 230,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,219.20 : 679,807.20 = 153,670.40 : x
  2. Step 2: Convert to fraction form
    453,219.20/679,807.20 = 153,670.40/x
  3. Step 3: Cross multiply
    453,219.20x = 679,807.20 × 153,670.40
  4. Step 4: Simplify right side
    453,219.20x = 104,466,244,346.88
  5. Step 5: Solve for x
    x = 104,466,244,346.88/453,219.20
  6. Step 6: Final answer
    x = 230,498.28

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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.