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Finding the Fourth Proportional to 518,614.50, 778,053.03 and 144,637.50

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Solution

The fourth proportional to 518,614.50, 778,053.03 and 144,637.50 is: 216,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,614.50 : 778,053.03 = 144,637.50 : x
  2. Step 2: Convert to fraction form
    518,614.50/778,053.03 = 144,637.50/x
  3. Step 3: Cross multiply
    518,614.50x = 778,053.03 × 144,637.50
  4. Step 4: Simplify right side
    518,614.50x = 112,535,645,126.63
  5. Step 5: Solve for x
    x = 112,535,645,126.63/518,614.50
  6. Step 6: Final answer
    x = 216,992.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.