Home / 319,596.96-478,935.18-219,869.76

Finding the Fourth Proportional to 319,596.96, 478,935.18 and 219,869.76

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Solution

The fourth proportional to 319,596.96, 478,935.18 and 219,869.76 is: 329,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,596.96 : 478,935.18 = 219,869.76 : x
  2. Step 2: Convert to fraction form
    319,596.96/478,935.18 = 219,869.76/x
  3. Step 3: Cross multiply
    319,596.96x = 478,935.18 × 219,869.76
  4. Step 4: Simplify right side
    319,596.96x = 105,303,363,082.16
  5. Step 5: Solve for x
    x = 105,303,363,082.16/319,596.96
  6. Step 6: Final answer
    x = 329,488.00

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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.