Home / 438,369.90-657,360.45-201,785.10

Finding the Fourth Proportional to 438,369.90, 657,360.45 and 201,785.10

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Solution

The fourth proportional to 438,369.90, 657,360.45 and 201,785.10 is: 302,588.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,369.90 : 657,360.45 = 201,785.10 : x
  2. Step 2: Convert to fraction form
    438,369.90/657,360.45 = 201,785.10/x
  3. Step 3: Cross multiply
    438,369.90x = 657,360.45 × 201,785.10
  4. Step 4: Simplify right side
    438,369.90x = 132,645,544,139.30
  5. Step 5: Solve for x
    x = 132,645,544,139.30/438,369.90
  6. Step 6: Final answer
    x = 302,588.17

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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.