Home / 278,856.54-384,821.28-151,532.16

Finding the Fourth Proportional to 278,856.54, 384,821.28 and 151,532.16

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Solution

The fourth proportional to 278,856.54, 384,821.28 and 151,532.16 is: 209,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,856.54 : 384,821.28 = 151,532.16 : x
  2. Step 2: Convert to fraction form
    278,856.54/384,821.28 = 151,532.16/x
  3. Step 3: Cross multiply
    278,856.54x = 384,821.28 × 151,532.16
  4. Step 4: Simplify right side
    278,856.54x = 58,312,799,772.36
  5. Step 5: Solve for x
    x = 58,312,799,772.36/278,856.54
  6. Step 6: Final answer
    x = 209,113.98

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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.