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Finding the Fourth Proportional to 281,509.76, 388,483.67 and 152,449.25

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Solution

The fourth proportional to 281,509.76, 388,483.67 and 152,449.25 is: 210,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,509.76 : 388,483.67 = 152,449.25 : x
  2. Step 2: Convert to fraction form
    281,509.76/388,483.67 = 152,449.25/x
  3. Step 3: Cross multiply
    281,509.76x = 388,483.67 × 152,449.25
  4. Step 4: Simplify right side
    281,509.76x = 59,224,041,424.08
  5. Step 5: Solve for x
    x = 59,224,041,424.08/281,509.76
  6. Step 6: Final answer
    x = 210,380.06

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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.