Home / 210,545.40-290,553.38-115,052.10

Finding the Fourth Proportional to 210,545.40, 290,553.38 and 115,052.10

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Solution

The fourth proportional to 210,545.40, 290,553.38 and 115,052.10 is: 158,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,545.40 : 290,553.38 = 115,052.10 : x
  2. Step 2: Convert to fraction form
    210,545.40/290,553.38 = 115,052.10/x
  3. Step 3: Cross multiply
    210,545.40x = 290,553.38 × 115,052.10
  4. Step 4: Simplify right side
    210,545.40x = 33,428,776,531.10
  5. Step 5: Solve for x
    x = 33,428,776,531.10/210,545.40
  6. Step 6: Final answer
    x = 158,772.30

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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.