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Finding the Fourth Proportional to 310,852.94, 466,279.38 and 86,213.37

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Solution

The fourth proportional to 310,852.94, 466,279.38 and 86,213.37 is: 129,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,852.94 : 466,279.38 = 86,213.37 : x
  2. Step 2: Convert to fraction form
    310,852.94/466,279.38 = 86,213.37/x
  3. Step 3: Cross multiply
    310,852.94x = 466,279.38 × 86,213.37
  4. Step 4: Simplify right side
    310,852.94x = 40,199,516,711.31
  5. Step 5: Solve for x
    x = 40,199,516,711.31/310,852.94
  6. Step 6: Final answer
    x = 129,320.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.