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Finding the Fourth Proportional to 343,763.79, 474,384.36 and 188,715.04

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Solution

The fourth proportional to 343,763.79, 474,384.36 and 188,715.04 is: 260,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,763.79 : 474,384.36 = 188,715.04 : x
  2. Step 2: Convert to fraction form
    343,763.79/474,384.36 = 188,715.04/x
  3. Step 3: Cross multiply
    343,763.79x = 474,384.36 × 188,715.04
  4. Step 4: Simplify right side
    343,763.79x = 89,523,463,472.77
  5. Step 5: Solve for x
    x = 89,523,463,472.77/343,763.79
  6. Step 6: Final answer
    x = 260,421.45

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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.