Home / 278,918.60-384,907.70-151,594.20

Finding the Fourth Proportional to 278,918.60, 384,907.70 and 151,594.20

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Solution

The fourth proportional to 278,918.60, 384,907.70 and 151,594.20 is: 209,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,918.60 : 384,907.70 = 151,594.20 : x
  2. Step 2: Convert to fraction form
    278,918.60/384,907.70 = 151,594.20/x
  3. Step 3: Cross multiply
    278,918.60x = 384,907.70 × 151,594.20
  4. Step 4: Simplify right side
    278,918.60x = 58,349,774,855.34
  5. Step 5: Solve for x
    x = 58,349,774,855.34/278,918.60
  6. Step 6: Final answer
    x = 209,200.01

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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.