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Finding the Fourth Proportional to 313,937.40, 470,895.54 and 136,444.38

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Solution

The fourth proportional to 313,937.40, 470,895.54 and 136,444.38 is: 204,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,937.40 : 470,895.54 = 136,444.38 : x
  2. Step 2: Convert to fraction form
    313,937.40/470,895.54 = 136,444.38/x
  3. Step 3: Cross multiply
    313,937.40x = 470,895.54 × 136,444.38
  4. Step 4: Simplify right side
    313,937.40x = 64,251,050,000.07
  5. Step 5: Solve for x
    x = 64,251,050,000.07/313,937.40
  6. Step 6: Final answer
    x = 204,661.98

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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.