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Finding the Fourth Proportional to 307,271.96, 424,060.56 and 169,477.88

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Solution

The fourth proportional to 307,271.96, 424,060.56 and 169,477.88 is: 233,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,271.96 : 424,060.56 = 169,477.88 : x
  2. Step 2: Convert to fraction form
    307,271.96/424,060.56 = 169,477.88/x
  3. Step 3: Cross multiply
    307,271.96x = 424,060.56 × 169,477.88
  4. Step 4: Simplify right side
    307,271.96x = 71,868,884,700.41
  5. Step 5: Solve for x
    x = 71,868,884,700.41/307,271.96
  6. Step 6: Final answer
    x = 233,893.40

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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.