Home / 281,248.20-388,075.86-160,398.23

Finding the Fourth Proportional to 281,248.20, 388,075.86 and 160,398.23

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Solution

The fourth proportional to 281,248.20, 388,075.86 and 160,398.23 is: 221,322.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,248.20 : 388,075.86 = 160,398.23 : x
  2. Step 2: Convert to fraction form
    281,248.20/388,075.86 = 160,398.23/x
  3. Step 3: Cross multiply
    281,248.20x = 388,075.86 × 160,398.23
  4. Step 4: Simplify right side
    281,248.20x = 62,246,679,109.35
  5. Step 5: Solve for x
    x = 62,246,679,109.35/281,248.20
  6. Step 6: Final answer
    x = 221,322.94

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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.