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Finding the Fourth Proportional to 338,205.68, 507,312.84 and 160,730

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Solution

The fourth proportional to 338,205.68, 507,312.84 and 160,730 is: 241,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,205.68 : 507,312.84 = 160,730 : x
  2. Step 2: Convert to fraction form
    338,205.68/507,312.84 = 160,730/x
  3. Step 3: Cross multiply
    338,205.68x = 507,312.84 × 160,730
  4. Step 4: Simplify right side
    338,205.68x = 81,540,392,773.20
  5. Step 5: Solve for x
    x = 81,540,392,773.20/338,205.68
  6. Step 6: Final answer
    x = 241,097.05

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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.