Home / 210,962.45-291,127.70-115,468.31

Finding the Fourth Proportional to 210,962.45, 291,127.70 and 115,468.31

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Solution

The fourth proportional to 210,962.45, 291,127.70 and 115,468.31 is: 159,346.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,962.45 : 291,127.70 = 115,468.31 : x
  2. Step 2: Convert to fraction form
    210,962.45/291,127.70 = 115,468.31/x
  3. Step 3: Cross multiply
    210,962.45x = 291,127.70 × 115,468.31
  4. Step 4: Simplify right side
    210,962.45x = 33,616,022,935.85
  5. Step 5: Solve for x
    x = 33,616,022,935.85/210,962.45
  6. Step 6: Final answer
    x = 159,346.00

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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.