Home / 253,643.13-380,284.47-127,192.16

Finding the Fourth Proportional to 253,643.13, 380,284.47 and 127,192.16

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Solution

The fourth proportional to 253,643.13, 380,284.47 and 127,192.16 is: 190,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,643.13 : 380,284.47 = 127,192.16 : x
  2. Step 2: Convert to fraction form
    253,643.13/380,284.47 = 127,192.16/x
  3. Step 3: Cross multiply
    253,643.13x = 380,284.47 × 127,192.16
  4. Step 4: Simplify right side
    253,643.13x = 48,369,201,252.33
  5. Step 5: Solve for x
    x = 48,369,201,252.33/253,643.13
  6. Step 6: Final answer
    x = 190,697.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.