Home / 208,931.16-313,048-201,156.36

Finding the Fourth Proportional to 208,931.16, 313,048 and 201,156.36

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Solution

The fourth proportional to 208,931.16, 313,048 and 201,156.36 is: 301,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.16 : 313,048 = 201,156.36 : x
  2. Step 2: Convert to fraction form
    208,931.16/313,048 = 201,156.36/x
  3. Step 3: Cross multiply
    208,931.16x = 313,048 × 201,156.36
  4. Step 4: Simplify right side
    208,931.16x = 62,971,596,185.28
  5. Step 5: Solve for x
    x = 62,971,596,185.28/208,931.16
  6. Step 6: Final answer
    x = 301,398.78

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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.