Home / 254,870.22-382,303.66-86,509.12

Finding the Fourth Proportional to 254,870.22, 382,303.66 and 86,509.12

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Solution

The fourth proportional to 254,870.22, 382,303.66 and 86,509.12 is: 129,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,870.22 : 382,303.66 = 86,509.12 : x
  2. Step 2: Convert to fraction form
    254,870.22/382,303.66 = 86,509.12/x
  3. Step 3: Cross multiply
    254,870.22x = 382,303.66 × 86,509.12
  4. Step 4: Simplify right side
    254,870.22x = 33,072,753,199.38
  5. Step 5: Solve for x
    x = 33,072,753,199.38/254,870.22
  6. Step 6: Final answer
    x = 129,763.11

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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.