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Finding the Fourth Proportional to 485,429.60, 727,852.80 and 249,233.60

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Solution

The fourth proportional to 485,429.60, 727,852.80 and 249,233.60 is: 373,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,429.60 : 727,852.80 = 249,233.60 : x
  2. Step 2: Convert to fraction form
    485,429.60/727,852.80 = 249,233.60/x
  3. Step 3: Cross multiply
    485,429.60x = 727,852.80 × 249,233.60
  4. Step 4: Simplify right side
    485,429.60x = 181,405,373,614.08
  5. Step 5: Solve for x
    x = 181,405,373,614.08/485,429.60
  6. Step 6: Final answer
    x = 373,700.68

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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.