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Finding the Fourth Proportional to 486,005.16, 729,003.26 and 153,581.16

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Solution

The fourth proportional to 486,005.16, 729,003.26 and 153,581.16 is: 230,370.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,005.16 : 729,003.26 = 153,581.16 : x
  2. Step 2: Convert to fraction form
    486,005.16/729,003.26 = 153,581.16/x
  3. Step 3: Cross multiply
    486,005.16x = 729,003.26 × 153,581.16
  4. Step 4: Simplify right side
    486,005.16x = 111,961,166,314.58
  5. Step 5: Solve for x
    x = 111,961,166,314.58/486,005.16
  6. Step 6: Final answer
    x = 230,370.32

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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.