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Finding the Fourth Proportional to 398,866.86, 596,896.04 and 249,177.64

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Solution

The fourth proportional to 398,866.86, 596,896.04 and 249,177.64 is: 372,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,866.86 : 596,896.04 = 249,177.64 : x
  2. Step 2: Convert to fraction form
    398,866.86/596,896.04 = 249,177.64/x
  3. Step 3: Cross multiply
    398,866.86x = 596,896.04 × 249,177.64
  4. Step 4: Simplify right side
    398,866.86x = 148,733,146,572.55
  5. Step 5: Solve for x
    x = 148,733,146,572.55/398,866.86
  6. Step 6: Final answer
    x = 372,889.21

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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.