Home / 421,962.76-582,309.21-230,988.22

Finding the Fourth Proportional to 421,962.76, 582,309.21 and 230,988.22

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Solution

The fourth proportional to 421,962.76, 582,309.21 and 230,988.22 is: 318,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,962.76 : 582,309.21 = 230,988.22 : x
  2. Step 2: Convert to fraction form
    421,962.76/582,309.21 = 230,988.22/x
  3. Step 3: Cross multiply
    421,962.76x = 582,309.21 × 230,988.22
  4. Step 4: Simplify right side
    421,962.76x = 134,506,567,907.51
  5. Step 5: Solve for x
    x = 134,506,567,907.51/421,962.76
  6. Step 6: Final answer
    x = 318,764.07

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Double scale
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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.