Home / 205,215.32-307,870.40-64,973.95

Finding the Fourth Proportional to 205,215.32, 307,870.40 and 64,973.95

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Solution

The fourth proportional to 205,215.32, 307,870.40 and 64,973.95 is: 97,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,215.32 : 307,870.40 = 64,973.95 : x
  2. Step 2: Convert to fraction form
    205,215.32/307,870.40 = 64,973.95/x
  3. Step 3: Cross multiply
    205,215.32x = 307,870.40 × 64,973.95
  4. Step 4: Simplify right side
    205,215.32x = 20,003,555,368.84
  5. Step 5: Solve for x
    x = 20,003,555,368.84/205,215.32
  6. Step 6: Final answer
    x = 97,475.93

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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.