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Finding the Fourth Proportional to 409,980.08, 565,715.94 and 228,670.76

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Solution

The fourth proportional to 409,980.08, 565,715.94 and 228,670.76 is: 315,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,980.08 : 565,715.94 = 228,670.76 : x
  2. Step 2: Convert to fraction form
    409,980.08/565,715.94 = 228,670.76/x
  3. Step 3: Cross multiply
    409,980.08x = 565,715.94 × 228,670.76
  4. Step 4: Simplify right side
    409,980.08x = 129,362,693,943.91
  5. Step 5: Solve for x
    x = 129,362,693,943.91/409,980.08
  6. Step 6: Final answer
    x = 315,534.10

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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.