Home / 278,607.06-384,281.01-171,237.51

Finding the Fourth Proportional to 278,607.06, 384,281.01 and 171,237.51

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Solution

The fourth proportional to 278,607.06, 384,281.01 and 171,237.51 is: 236,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,607.06 : 384,281.01 = 171,237.51 : x
  2. Step 2: Convert to fraction form
    278,607.06/384,281.01 = 171,237.51/x
  3. Step 3: Cross multiply
    278,607.06x = 384,281.01 × 171,237.51
  4. Step 4: Simplify right side
    278,607.06x = 65,803,323,292.69
  5. Step 5: Solve for x
    x = 65,803,323,292.69/278,607.06
  6. Step 6: Final answer
    x = 236,186.85

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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.