Home / 209,384.16-313,956.84-142,904.76

Finding the Fourth Proportional to 209,384.16, 313,956.84 and 142,904.76

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Solution

The fourth proportional to 209,384.16, 313,956.84 and 142,904.76 is: 214,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,384.16 : 313,956.84 = 142,904.76 : x
  2. Step 2: Convert to fraction form
    209,384.16/313,956.84 = 142,904.76/x
  3. Step 3: Cross multiply
    209,384.16x = 313,956.84 × 142,904.76
  4. Step 4: Simplify right side
    209,384.16x = 44,865,926,870.56
  5. Step 5: Solve for x
    x = 44,865,926,870.56/209,384.16
  6. Step 6: Final answer
    x = 214,275.65

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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.