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Finding the Fourth Proportional to 280,099.20, 386,525.18 and 152,767.20

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Solution

The fourth proportional to 280,099.20, 386,525.18 and 152,767.20 is: 210,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,099.20 : 386,525.18 = 152,767.20 : x
  2. Step 2: Convert to fraction form
    280,099.20/386,525.18 = 152,767.20/x
  3. Step 3: Cross multiply
    280,099.20x = 386,525.18 × 152,767.20
  4. Step 4: Simplify right side
    280,099.20x = 59,048,369,478.10
  5. Step 5: Solve for x
    x = 59,048,369,478.10/280,099.20
  6. Step 6: Final answer
    x = 210,812.35

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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.