Home / 282,755.06-390,204.75-153,693.45

Finding the Fourth Proportional to 282,755.06, 390,204.75 and 153,693.45

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Solution

The fourth proportional to 282,755.06, 390,204.75 and 153,693.45 is: 212,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,755.06 : 390,204.75 = 153,693.45 : x
  2. Step 2: Convert to fraction form
    282,755.06/390,204.75 = 153,693.45/x
  3. Step 3: Cross multiply
    282,755.06x = 390,204.75 × 153,693.45
  4. Step 4: Simplify right side
    282,755.06x = 59,971,914,233.89
  5. Step 5: Solve for x
    x = 59,971,914,233.89/282,755.06
  6. Step 6: Final answer
    x = 212,098.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.