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Finding the Fourth Proportional to 571,030.68, 856,479.78 and 150,339.36

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Solution

The fourth proportional to 571,030.68, 856,479.78 and 150,339.36 is: 225,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,030.68 : 856,479.78 = 150,339.36 : x
  2. Step 2: Convert to fraction form
    571,030.68/856,479.78 = 150,339.36/x
  3. Step 3: Cross multiply
    571,030.68x = 856,479.78 × 150,339.36
  4. Step 4: Simplify right side
    571,030.68x = 128,762,621,978.14
  5. Step 5: Solve for x
    x = 128,762,621,978.14/571,030.68
  6. Step 6: Final answer
    x = 225,491.60

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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.