Home / 278,463.03-384,268.70-151,135.89

Finding the Fourth Proportional to 278,463.03, 384,268.70 and 151,135.89

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Solution

The fourth proportional to 278,463.03, 384,268.70 and 151,135.89 is: 208,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,463.03 : 384,268.70 = 151,135.89 : x
  2. Step 2: Convert to fraction form
    278,463.03/384,268.70 = 151,135.89/x
  3. Step 3: Cross multiply
    278,463.03x = 384,268.70 × 151,135.89
  4. Step 4: Simplify right side
    278,463.03x = 58,076,791,973.64
  5. Step 5: Solve for x
    x = 58,076,791,973.64/278,463.03
  6. Step 6: Final answer
    x = 208,561.95

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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.