Home / 369,738.34-553,148.28-280,039.51

Finding the Fourth Proportional to 369,738.34, 553,148.28 and 280,039.51

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Solution

The fourth proportional to 369,738.34, 553,148.28 and 280,039.51 is: 418,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,738.34 : 553,148.28 = 280,039.51 : x
  2. Step 2: Convert to fraction form
    369,738.34/553,148.28 = 280,039.51/x
  3. Step 3: Cross multiply
    369,738.34x = 553,148.28 × 280,039.51
  4. Step 4: Simplify right side
    369,738.34x = 154,903,373,288.54
  5. Step 5: Solve for x
    x = 154,903,373,288.54/369,738.34
  6. Step 6: Final answer
    x = 418,954.05

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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.