Home / 278,685.49-384,579.63-151,358.35

Finding the Fourth Proportional to 278,685.49, 384,579.63 and 151,358.35

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Solution

The fourth proportional to 278,685.49, 384,579.63 and 151,358.35 is: 208,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,685.49 : 384,579.63 = 151,358.35 : x
  2. Step 2: Convert to fraction form
    278,685.49/384,579.63 = 151,358.35/x
  3. Step 3: Cross multiply
    278,685.49x = 384,579.63 × 151,358.35
  4. Step 4: Simplify right side
    278,685.49x = 58,209,338,240.41
  5. Step 5: Solve for x
    x = 58,209,338,240.41/278,685.49
  6. Step 6: Final answer
    x = 208,871.08

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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.