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Finding the Fourth Proportional to 205,045.20, 307,567.80 and 171,802.80

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Solution

The fourth proportional to 205,045.20, 307,567.80 and 171,802.80 is: 257,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,045.20 : 307,567.80 = 171,802.80 : x
  2. Step 2: Convert to fraction form
    205,045.20/307,567.80 = 171,802.80/x
  3. Step 3: Cross multiply
    205,045.20x = 307,567.80 × 171,802.80
  4. Step 4: Simplify right side
    205,045.20x = 52,841,009,229.84
  5. Step 5: Solve for x
    x = 52,841,009,229.84/205,045.20
  6. Step 6: Final answer
    x = 257,704.20

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1.5x scale

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.