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Finding the Fourth Proportional to 307,452, 424,283.76 and 173,316

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Solution

The fourth proportional to 307,452, 424,283.76 and 173,316 is: 239,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,452 : 424,283.76 = 173,316 : x
  2. Step 2: Convert to fraction form
    307,452/424,283.76 = 173,316/x
  3. Step 3: Cross multiply
    307,452x = 424,283.76 × 173,316
  4. Step 4: Simplify right side
    307,452x = 73,535,164,148.16
  5. Step 5: Solve for x
    x = 73,535,164,148.16/307,452
  6. Step 6: Final answer
    x = 239,176.08

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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.