Home / 308,270.38-462,312.15-118,716.17

Finding the Fourth Proportional to 308,270.38, 462,312.15 and 118,716.17

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Solution

The fourth proportional to 308,270.38, 462,312.15 and 118,716.17 is: 178,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,270.38 : 462,312.15 = 118,716.17 : x
  2. Step 2: Convert to fraction form
    308,270.38/462,312.15 = 118,716.17/x
  3. Step 3: Cross multiply
    308,270.38x = 462,312.15 × 118,716.17
  4. Step 4: Simplify right side
    308,270.38x = 54,883,927,570.41
  5. Step 5: Solve for x
    x = 54,883,927,570.41/308,270.38
  6. Step 6: Final answer
    x = 178,038.28

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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.