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Finding the Fourth Proportional to 486,626.80, 729,810.60 and 149,666.80

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Solution

The fourth proportional to 486,626.80, 729,810.60 and 149,666.80 is: 224,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,626.80 : 729,810.60 = 149,666.80 : x
  2. Step 2: Convert to fraction form
    486,626.80/729,810.60 = 149,666.80/x
  3. Step 3: Cross multiply
    486,626.80x = 729,810.60 × 149,666.80
  4. Step 4: Simplify right side
    486,626.80x = 109,228,417,108.08
  5. Step 5: Solve for x
    x = 109,228,417,108.08/486,626.80
  6. Step 6: Final answer
    x = 224,460.34

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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.