Home / 210,641.49-290,691.59-115,153.29

Finding the Fourth Proportional to 210,641.49, 290,691.59 and 115,153.29

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Solution

The fourth proportional to 210,641.49, 290,691.59 and 115,153.29 is: 158,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,641.49 : 290,691.59 = 115,153.29 : x
  2. Step 2: Convert to fraction form
    210,641.49/290,691.59 = 115,153.29/x
  3. Step 3: Cross multiply
    210,641.49x = 290,691.59 × 115,153.29
  4. Step 4: Simplify right side
    210,641.49x = 33,474,092,388.06
  5. Step 5: Solve for x
    x = 33,474,092,388.06/210,641.49
  6. Step 6: Final answer
    x = 158,915.00

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1.5x scale

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.