Home / 278,756.54-384,681.91-151,433.04

Finding the Fourth Proportional to 278,756.54, 384,681.91 and 151,433.04

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Solution

The fourth proportional to 278,756.54, 384,681.91 and 151,433.04 is: 208,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,756.54 : 384,681.91 = 151,433.04 : x
  2. Step 2: Convert to fraction form
    278,756.54/384,681.91 = 151,433.04/x
  3. Step 3: Cross multiply
    278,756.54x = 384,681.91 × 151,433.04
  4. Step 4: Simplify right side
    278,756.54x = 58,253,552,412.22
  5. Step 5: Solve for x
    x = 58,253,552,412.22/278,756.54
  6. Step 6: Final answer
    x = 208,976.45

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1.5x scale

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.