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Finding the Fourth Proportional to 338,089.68, 507,218.76 and 101,436.72

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Solution

The fourth proportional to 338,089.68, 507,218.76 and 101,436.72 is: 152,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,089.68 : 507,218.76 = 101,436.72 : x
  2. Step 2: Convert to fraction form
    338,089.68/507,218.76 = 101,436.72/x
  3. Step 3: Cross multiply
    338,089.68x = 507,218.76 × 101,436.72
  4. Step 4: Simplify right side
    338,089.68x = 51,450,607,336.87
  5. Step 5: Solve for x
    x = 51,450,607,336.87/338,089.68
  6. Step 6: Final answer
    x = 152,180.35

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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.