Home / 278,567.19-384,422.71-151,242.80

Finding the Fourth Proportional to 278,567.19, 384,422.71 and 151,242.80

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Solution

The fourth proportional to 278,567.19, 384,422.71 and 151,242.80 is: 208,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,567.19 : 384,422.71 = 151,242.80 : x
  2. Step 2: Convert to fraction form
    278,567.19/384,422.71 = 151,242.80/x
  3. Step 3: Cross multiply
    278,567.19x = 384,422.71 × 151,242.80
  4. Step 4: Simplify right side
    278,567.19x = 58,141,167,043.99
  5. Step 5: Solve for x
    x = 58,141,167,043.99/278,567.19
  6. Step 6: Final answer
    x = 208,715.06

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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.