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Finding the Fourth Proportional to 307,632.63, 424,469.55 and 176,784.93

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Solution

The fourth proportional to 307,632.63, 424,469.55 and 176,784.93 is: 243,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,632.63 : 424,469.55 = 176,784.93 : x
  2. Step 2: Convert to fraction form
    307,632.63/424,469.55 = 176,784.93/x
  3. Step 3: Cross multiply
    307,632.63x = 424,469.55 × 176,784.93
  4. Step 4: Simplify right side
    307,632.63x = 75,039,816,677.61
  5. Step 5: Solve for x
    x = 75,039,816,677.61/307,632.63
  6. Step 6: Final answer
    x = 243,926.71

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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.