Home / 210,830.04-290,943.02-115,335.56

Finding the Fourth Proportional to 210,830.04, 290,943.02 and 115,335.56

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Solution

The fourth proportional to 210,830.04, 290,943.02 and 115,335.56 is: 159,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,830.04 : 290,943.02 = 115,335.56 : x
  2. Step 2: Convert to fraction form
    210,830.04/290,943.02 = 115,335.56/x
  3. Step 3: Cross multiply
    210,830.04x = 290,943.02 × 115,335.56
  4. Step 4: Simplify right side
    210,830.04x = 33,556,077,155.49
  5. Step 5: Solve for x
    x = 33,556,077,155.49/210,830.04
  6. Step 6: Final answer
    x = 159,161.75

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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.