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Finding the Fourth Proportional to 485,329.60, 727,702.80 and 249,133.60

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Solution

The fourth proportional to 485,329.60, 727,702.80 and 249,133.60 is: 373,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,329.60 : 727,702.80 = 249,133.60 : x
  2. Step 2: Convert to fraction form
    485,329.60/727,702.80 = 249,133.60/x
  3. Step 3: Cross multiply
    485,329.60x = 727,702.80 × 249,133.60
  4. Step 4: Simplify right side
    485,329.60x = 181,295,218,294.08
  5. Step 5: Solve for x
    x = 181,295,218,294.08/485,329.60
  6. Step 6: Final answer
    x = 373,550.71

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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.