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Finding the Fourth Proportional to 571,004.16, 856,440 and 150,312.88

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Solution

The fourth proportional to 571,004.16, 856,440 and 150,312.88 is: 225,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,004.16 : 856,440 = 150,312.88 : x
  2. Step 2: Convert to fraction form
    571,004.16/856,440 = 150,312.88/x
  3. Step 3: Cross multiply
    571,004.16x = 856,440 × 150,312.88
  4. Step 4: Simplify right side
    571,004.16x = 128,733,962,947.20
  5. Step 5: Solve for x
    x = 128,733,962,947.20/571,004.16
  6. Step 6: Final answer
    x = 225,451.88

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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.