Home / 260,056.20-390,084.30-153,611.40

Finding the Fourth Proportional to 260,056.20, 390,084.30 and 153,611.40

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Solution

The fourth proportional to 260,056.20, 390,084.30 and 153,611.40 is: 230,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,056.20 : 390,084.30 = 153,611.40 : x
  2. Step 2: Convert to fraction form
    260,056.20/390,084.30 = 153,611.40/x
  3. Step 3: Cross multiply
    260,056.20x = 390,084.30 × 153,611.40
  4. Step 4: Simplify right side
    260,056.20x = 59,921,395,441.02
  5. Step 5: Solve for x
    x = 59,921,395,441.02/260,056.20
  6. Step 6: Final answer
    x = 230,417.10

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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.