Home / 210,510.18-290,523.78-115,031.07

Finding the Fourth Proportional to 210,510.18, 290,523.78 and 115,031.07

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Solution

The fourth proportional to 210,510.18, 290,523.78 and 115,031.07 is: 158,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510.18 : 290,523.78 = 115,031.07 : x
  2. Step 2: Convert to fraction form
    210,510.18/290,523.78 = 115,031.07/x
  3. Step 3: Cross multiply
    210,510.18x = 290,523.78 × 115,031.07
  4. Step 4: Simplify right side
    210,510.18x = 33,419,261,273.84
  5. Step 5: Solve for x
    x = 33,419,261,273.84/210,510.18
  6. Step 6: Final answer
    x = 158,753.66

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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.