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Finding the Fourth Proportional to 368,664.72, 508,655.40 and 207,510.36

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Solution

The fourth proportional to 368,664.72, 508,655.40 and 207,510.36 is: 286,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,664.72 : 508,655.40 = 207,510.36 : x
  2. Step 2: Convert to fraction form
    368,664.72/508,655.40 = 207,510.36/x
  3. Step 3: Cross multiply
    368,664.72x = 508,655.40 × 207,510.36
  4. Step 4: Simplify right side
    368,664.72x = 105,551,265,169.94
  5. Step 5: Solve for x
    x = 105,551,265,169.94/368,664.72
  6. Step 6: Final answer
    x = 286,306.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.