Home / 260,486.10-390,437.55-148,220.10

Finding the Fourth Proportional to 260,486.10, 390,437.55 and 148,220.10

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Solution

The fourth proportional to 260,486.10, 390,437.55 and 148,220.10 is: 222,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,486.10 : 390,437.55 = 148,220.10 : x
  2. Step 2: Convert to fraction form
    260,486.10/390,437.55 = 148,220.10/x
  3. Step 3: Cross multiply
    260,486.10x = 390,437.55 × 148,220.10
  4. Step 4: Simplify right side
    260,486.10x = 57,870,692,704.76
  5. Step 5: Solve for x
    x = 57,870,692,704.76/260,486.10
  6. Step 6: Final answer
    x = 222,164.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.