Home / 278,666.51-384,562.04-151,343.01

Finding the Fourth Proportional to 278,666.51, 384,562.04 and 151,343.01

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Solution

The fourth proportional to 278,666.51, 384,562.04 and 151,343.01 is: 208,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,666.51 : 384,562.04 = 151,343.01 : x
  2. Step 2: Convert to fraction form
    278,666.51/384,562.04 = 151,343.01/x
  3. Step 3: Cross multiply
    278,666.51x = 384,562.04 × 151,343.01
  4. Step 4: Simplify right side
    278,666.51x = 58,200,775,908.63
  5. Step 5: Solve for x
    x = 58,200,775,908.63/278,666.51
  6. Step 6: Final answer
    x = 208,854.58

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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.