Home / 253,457.16-349,788.60-140,287.20

Finding the Fourth Proportional to 253,457.16, 349,788.60 and 140,287.20

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Solution

The fourth proportional to 253,457.16, 349,788.60 and 140,287.20 is: 193,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,457.16 : 349,788.60 = 140,287.20 : x
  2. Step 2: Convert to fraction form
    253,457.16/349,788.60 = 140,287.20/x
  3. Step 3: Cross multiply
    253,457.16x = 349,788.60 × 140,287.20
  4. Step 4: Simplify right side
    253,457.16x = 49,070,863,285.92
  5. Step 5: Solve for x
    x = 49,070,863,285.92/253,457.16
  6. Step 6: Final answer
    x = 193,606.14

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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.