Home / 247,764.57-341,931.68-138,870.20

Finding the Fourth Proportional to 247,764.57, 341,931.68 and 138,870.20

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Solution

The fourth proportional to 247,764.57, 341,931.68 and 138,870.20 is: 191,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,764.57 : 341,931.68 = 138,870.20 : x
  2. Step 2: Convert to fraction form
    247,764.57/341,931.68 = 138,870.20/x
  3. Step 3: Cross multiply
    247,764.57x = 341,931.68 × 138,870.20
  4. Step 4: Simplify right side
    247,764.57x = 47,484,118,383.93
  5. Step 5: Solve for x
    x = 47,484,118,383.93/247,764.57
  6. Step 6: Final answer
    x = 191,650.16

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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.