Home / 210,541.68-290,551.32-115,052.40

Finding the Fourth Proportional to 210,541.68, 290,551.32 and 115,052.40

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Solution

The fourth proportional to 210,541.68, 290,551.32 and 115,052.40 is: 158,774.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,541.68 : 290,551.32 = 115,052.40 : x
  2. Step 2: Convert to fraction form
    210,541.68/290,551.32 = 115,052.40/x
  3. Step 3: Cross multiply
    210,541.68x = 290,551.32 × 115,052.40
  4. Step 4: Simplify right side
    210,541.68x = 33,428,626,689.17
  5. Step 5: Solve for x
    x = 33,428,626,689.17/210,541.68
  6. Step 6: Final answer
    x = 158,774.39

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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.