Home / 210,455.12-290,423.35-114,962.20

Finding the Fourth Proportional to 210,455.12, 290,423.35 and 114,962.20

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Solution

The fourth proportional to 210,455.12, 290,423.35 and 114,962.20 is: 158,645.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,455.12 : 290,423.35 = 114,962.20 : x
  2. Step 2: Convert to fraction form
    210,455.12/290,423.35 = 114,962.20/x
  3. Step 3: Cross multiply
    210,455.12x = 290,423.35 × 114,962.20
  4. Step 4: Simplify right side
    210,455.12x = 33,387,706,233.91
  5. Step 5: Solve for x
    x = 33,387,706,233.91/210,455.12
  6. Step 6: Final answer
    x = 158,645.25

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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.