Home / 210,845.23-290,973.32-115,349.71

Finding the Fourth Proportional to 210,845.23, 290,973.32 and 115,349.71

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Solution

The fourth proportional to 210,845.23, 290,973.32 and 115,349.71 is: 159,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,845.23 : 290,973.32 = 115,349.71 : x
  2. Step 2: Convert to fraction form
    210,845.23/290,973.32 = 115,349.71/x
  3. Step 3: Cross multiply
    210,845.23x = 290,973.32 × 115,349.71
  4. Step 4: Simplify right side
    210,845.23x = 33,563,688,079.74
  5. Step 5: Solve for x
    x = 33,563,688,079.74/210,845.23
  6. Step 6: Final answer
    x = 159,186.38

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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.