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Finding the Fourth Proportional to 315,480.84, 435,346.50 and 179,510.76

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Solution

The fourth proportional to 315,480.84, 435,346.50 and 179,510.76 is: 247,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,480.84 : 435,346.50 = 179,510.76 : x
  2. Step 2: Convert to fraction form
    315,480.84/435,346.50 = 179,510.76/x
  3. Step 3: Cross multiply
    315,480.84x = 435,346.50 × 179,510.76
  4. Step 4: Simplify right side
    315,480.84x = 78,149,381,078.34
  5. Step 5: Solve for x
    x = 78,149,381,078.34/315,480.84
  6. Step 6: Final answer
    x = 247,715.14

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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.