Home / 443,688.13-665,265.80-203,501.16

Finding the Fourth Proportional to 443,688.13, 665,265.80 and 203,501.16

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Solution

The fourth proportional to 443,688.13, 665,265.80 and 203,501.16 is: 305,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,688.13 : 665,265.80 = 203,501.16 : x
  2. Step 2: Convert to fraction form
    443,688.13/665,265.80 = 203,501.16/x
  3. Step 3: Cross multiply
    443,688.13x = 665,265.80 × 203,501.16
  4. Step 4: Simplify right side
    443,688.13x = 135,382,358,682.00
  5. Step 5: Solve for x
    x = 135,382,358,682.00/443,688.13
  6. Step 6: Final answer
    x = 305,129.55

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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.