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Finding the Fourth Proportional to 490,012.64, 734,863.36 and 157,510.88

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Solution

The fourth proportional to 490,012.64, 734,863.36 and 157,510.88 is: 236,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,012.64 : 734,863.36 = 157,510.88 : x
  2. Step 2: Convert to fraction form
    490,012.64/734,863.36 = 157,510.88/x
  3. Step 3: Cross multiply
    490,012.64x = 734,863.36 × 157,510.88
  4. Step 4: Simplify right side
    490,012.64x = 115,748,974,513.36
  5. Step 5: Solve for x
    x = 115,748,974,513.36/490,012.64
  6. Step 6: Final answer
    x = 236,216.30

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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.