Home / 281,323.40-388,271.50-160,504.10

Finding the Fourth Proportional to 281,323.40, 388,271.50 and 160,504.10

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Solution

The fourth proportional to 281,323.40, 388,271.50 and 160,504.10 is: 221,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,323.40 : 388,271.50 = 160,504.10 : x
  2. Step 2: Convert to fraction form
    281,323.40/388,271.50 = 160,504.10/x
  3. Step 3: Cross multiply
    281,323.40x = 388,271.50 × 160,504.10
  4. Step 4: Simplify right side
    281,323.40x = 62,319,167,663.15
  5. Step 5: Solve for x
    x = 62,319,167,663.15/281,323.40
  6. Step 6: Final answer
    x = 221,521.45

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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.