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Finding the Fourth Proportional to 372,581, 514,161.84 and 202,816.40

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Solution

The fourth proportional to 372,581, 514,161.84 and 202,816.40 is: 279,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,581 : 514,161.84 = 202,816.40 : x
  2. Step 2: Convert to fraction form
    372,581/514,161.84 = 202,816.40/x
  3. Step 3: Cross multiply
    372,581x = 514,161.84 × 202,816.40
  4. Step 4: Simplify right side
    372,581x = 104,280,453,406.18
  5. Step 5: Solve for x
    x = 104,280,453,406.18/372,581
  6. Step 6: Final answer
    x = 279,886.66

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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.