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Finding the Fourth Proportional to 307,573.89, 424,484.79 and 171,655.08

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Solution

The fourth proportional to 307,573.89, 424,484.79 and 171,655.08 is: 236,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,573.89 : 424,484.79 = 171,655.08 : x
  2. Step 2: Convert to fraction form
    307,573.89/424,484.79 = 171,655.08/x
  3. Step 3: Cross multiply
    307,573.89x = 424,484.79 × 171,655.08
  4. Step 4: Simplify right side
    307,573.89x = 72,864,967,605.53
  5. Step 5: Solve for x
    x = 72,864,967,605.53/307,573.89
  6. Step 6: Final answer
    x = 236,902.32

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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.