Home / 278,315.13-384,075.62-150,990.72

Finding the Fourth Proportional to 278,315.13, 384,075.62 and 150,990.72

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Solution

The fourth proportional to 278,315.13, 384,075.62 and 150,990.72 is: 208,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,315.13 : 384,075.62 = 150,990.72 : x
  2. Step 2: Convert to fraction form
    278,315.13/384,075.62 = 150,990.72/x
  3. Step 3: Cross multiply
    278,315.13x = 384,075.62 × 150,990.72
  4. Step 4: Simplify right side
    278,315.13x = 57,991,853,643.29
  5. Step 5: Solve for x
    x = 57,991,853,643.29/278,315.13
  6. Step 6: Final answer
    x = 208,367.60

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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.