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Finding the Fourth Proportional to 438,810.42, 657,718.02 and 201,663.03

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Solution

The fourth proportional to 438,810.42, 657,718.02 and 201,663.03 is: 302,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,810.42 : 657,718.02 = 201,663.03 : x
  2. Step 2: Convert to fraction form
    438,810.42/657,718.02 = 201,663.03/x
  3. Step 3: Cross multiply
    438,810.42x = 657,718.02 × 201,663.03
  4. Step 4: Simplify right side
    438,810.42x = 132,637,408,798.80
  5. Step 5: Solve for x
    x = 132,637,408,798.80/438,810.42
  6. Step 6: Final answer
    x = 302,265.86

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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.