Home / 278,400.13-384,192.18-151,075.73

Finding the Fourth Proportional to 278,400.13, 384,192.18 and 151,075.73

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Solution

The fourth proportional to 278,400.13, 384,192.18 and 151,075.73 is: 208,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,400.13 : 384,192.18 = 151,075.73 : x
  2. Step 2: Convert to fraction form
    278,400.13/384,192.18 = 151,075.73/x
  3. Step 3: Cross multiply
    278,400.13x = 384,192.18 × 151,075.73
  4. Step 4: Simplify right side
    278,400.13x = 58,042,112,525.37
  5. Step 5: Solve for x
    x = 58,042,112,525.37/278,400.13
  6. Step 6: Final answer
    x = 208,484.50

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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.