Home / 278,460.92-384,210.18-157,602.20

Finding the Fourth Proportional to 278,460.92, 384,210.18 and 157,602.20

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Solution

The fourth proportional to 278,460.92, 384,210.18 and 157,602.20 is: 217,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,460.92 : 384,210.18 = 157,602.20 : x
  2. Step 2: Convert to fraction form
    278,460.92/384,210.18 = 157,602.20/x
  3. Step 3: Cross multiply
    278,460.92x = 384,210.18 × 157,602.20
  4. Step 4: Simplify right side
    278,460.92x = 60,552,367,709.35
  5. Step 5: Solve for x
    x = 60,552,367,709.35/278,460.92
  6. Step 6: Final answer
    x = 217,453.74

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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.