Home / 210,715.63-290,794.53-115,222.32

Finding the Fourth Proportional to 210,715.63, 290,794.53 and 115,222.32

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Solution

The fourth proportional to 210,715.63, 290,794.53 and 115,222.32 is: 159,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,715.63 : 290,794.53 = 115,222.32 : x
  2. Step 2: Convert to fraction form
    210,715.63/290,794.53 = 115,222.32/x
  3. Step 3: Cross multiply
    210,715.63x = 290,794.53 × 115,222.32
  4. Step 4: Simplify right side
    210,715.63x = 33,506,021,315.79
  5. Step 5: Solve for x
    x = 33,506,021,315.79/210,715.63
  6. Step 6: Final answer
    x = 159,010.61

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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.