Home / 210,554.68-290,569.26-115,065.40

Finding the Fourth Proportional to 210,554.68, 290,569.26 and 115,065.40

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Solution

The fourth proportional to 210,554.68, 290,569.26 and 115,065.40 is: 158,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,554.68 : 290,569.26 = 115,065.40 : x
  2. Step 2: Convert to fraction form
    210,554.68/290,569.26 = 115,065.40/x
  3. Step 3: Cross multiply
    210,554.68x = 290,569.26 × 115,065.40
  4. Step 4: Simplify right side
    210,554.68x = 33,434,468,129.60
  5. Step 5: Solve for x
    x = 33,434,468,129.60/210,554.68
  6. Step 6: Final answer
    x = 158,792.33

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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.