Home / 205,030.80-307,488.60-64,832.40

Finding the Fourth Proportional to 205,030.80, 307,488.60 and 64,832.40

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Solution

The fourth proportional to 205,030.80, 307,488.60 and 64,832.40 is: 97,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,030.80 : 307,488.60 = 64,832.40 : x
  2. Step 2: Convert to fraction form
    205,030.80/307,488.60 = 64,832.40/x
  3. Step 3: Cross multiply
    205,030.80x = 307,488.60 × 64,832.40
  4. Step 4: Simplify right side
    205,030.80x = 19,935,223,910.64
  5. Step 5: Solve for x
    x = 19,935,223,910.64/205,030.80
  6. Step 6: Final answer
    x = 97,230.39

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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.