Home / 190,400.10-285,254.55-155,148.90

Finding the Fourth Proportional to 190,400.10, 285,254.55 and 155,148.90

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Solution

The fourth proportional to 190,400.10, 285,254.55 and 155,148.90 is: 232,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,400.10 : 285,254.55 = 155,148.90 : x
  2. Step 2: Convert to fraction form
    190,400.10/285,254.55 = 155,148.90/x
  3. Step 3: Cross multiply
    190,400.10x = 285,254.55 × 155,148.90
  4. Step 4: Simplify right side
    190,400.10x = 44,256,929,652.50
  5. Step 5: Solve for x
    x = 44,256,929,652.50/190,400.10
  6. Step 6: Final answer
    x = 232,441.74

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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.