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Finding the Fourth Proportional to 310,947.20, 466,075.20 and 170,806.40

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Solution

The fourth proportional to 310,947.20, 466,075.20 and 170,806.40 is: 256,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,947.20 : 466,075.20 = 170,806.40 : x
  2. Step 2: Convert to fraction form
    310,947.20/466,075.20 = 170,806.40/x
  3. Step 3: Cross multiply
    310,947.20x = 466,075.20 × 170,806.40
  4. Step 4: Simplify right side
    310,947.20x = 79,608,627,041.28
  5. Step 5: Solve for x
    x = 79,608,627,041.28/310,947.20
  6. Step 6: Final answer
    x = 256,019.76

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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.