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Finding the Fourth Proportional to 370,129.50, 510,778.98 and 200,363.76

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Solution

The fourth proportional to 370,129.50, 510,778.98 and 200,363.76 is: 276,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,129.50 : 510,778.98 = 200,363.76 : x
  2. Step 2: Convert to fraction form
    370,129.50/510,778.98 = 200,363.76/x
  3. Step 3: Cross multiply
    370,129.50x = 510,778.98 × 200,363.76
  4. Step 4: Simplify right side
    370,129.50x = 102,341,596,961.77
  5. Step 5: Solve for x
    x = 102,341,596,961.77/370,129.50
  6. Step 6: Final answer
    x = 276,502.13

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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.