Home / 205,130.20-307,695.30-173,637.40

Finding the Fourth Proportional to 205,130.20, 307,695.30 and 173,637.40

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Solution

The fourth proportional to 205,130.20, 307,695.30 and 173,637.40 is: 260,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,130.20 : 307,695.30 = 173,637.40 : x
  2. Step 2: Convert to fraction form
    205,130.20/307,695.30 = 173,637.40/x
  3. Step 3: Cross multiply
    205,130.20x = 307,695.30 × 173,637.40
  4. Step 4: Simplify right side
    205,130.20x = 53,427,411,884.22
  5. Step 5: Solve for x
    x = 53,427,411,884.22/205,130.20
  6. Step 6: Final answer
    x = 260,456.10

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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.