Home / 260,101.20-390,281.40-147,867.60

Finding the Fourth Proportional to 260,101.20, 390,281.40 and 147,867.60

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Solution

The fourth proportional to 260,101.20, 390,281.40 and 147,867.60 is: 221,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,101.20 : 390,281.40 = 147,867.60 : x
  2. Step 2: Convert to fraction form
    260,101.20/390,281.40 = 147,867.60/x
  3. Step 3: Cross multiply
    260,101.20x = 390,281.40 × 147,867.60
  4. Step 4: Simplify right side
    260,101.20x = 57,709,973,942.64
  5. Step 5: Solve for x
    x = 57,709,973,942.64/260,101.20
  6. Step 6: Final answer
    x = 221,875.08

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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.