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Finding the Fourth Proportional to 608,265.84, 912,340.32 and 187,428.72

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Solution

The fourth proportional to 608,265.84, 912,340.32 and 187,428.72 is: 281,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,265.84 : 912,340.32 = 187,428.72 : x
  2. Step 2: Convert to fraction form
    608,265.84/912,340.32 = 187,428.72/x
  3. Step 3: Cross multiply
    608,265.84x = 912,340.32 × 187,428.72
  4. Step 4: Simplify right side
    608,265.84x = 170,998,778,381.99
  5. Step 5: Solve for x
    x = 170,998,778,381.99/608,265.84
  6. Step 6: Final answer
    x = 281,125.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.