Home / 210,580.32-290,601.36-115,088.16

Finding the Fourth Proportional to 210,580.32, 290,601.36 and 115,088.16

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Solution

The fourth proportional to 210,580.32, 290,601.36 and 115,088.16 is: 158,821.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,580.32 : 290,601.36 = 115,088.16 : x
  2. Step 2: Convert to fraction form
    210,580.32/290,601.36 = 115,088.16/x
  3. Step 3: Cross multiply
    210,580.32x = 290,601.36 × 115,088.16
  4. Step 4: Simplify right side
    210,580.32x = 33,444,775,815.90
  5. Step 5: Solve for x
    x = 33,444,775,815.90/210,580.32
  6. Step 6: Final answer
    x = 158,821.94

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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.