Home / 278,841.28-384,801.60-151,514.08

Finding the Fourth Proportional to 278,841.28, 384,801.60 and 151,514.08

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Solution

The fourth proportional to 278,841.28, 384,801.60 and 151,514.08 is: 209,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,841.28 : 384,801.60 = 151,514.08 : x
  2. Step 2: Convert to fraction form
    278,841.28/384,801.60 = 151,514.08/x
  3. Step 3: Cross multiply
    278,841.28x = 384,801.60 × 151,514.08
  4. Step 4: Simplify right side
    278,841.28x = 58,302,860,406.53
  5. Step 5: Solve for x
    x = 58,302,860,406.53/278,841.28
  6. Step 6: Final answer
    x = 209,089.77

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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.