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Finding the Fourth Proportional to 310,713.20, 466,415.40 and 170,745.20

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Solution

The fourth proportional to 310,713.20, 466,415.40 and 170,745.20 is: 256,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,713.20 : 466,415.40 = 170,745.20 : x
  2. Step 2: Convert to fraction form
    310,713.20/466,415.40 = 170,745.20/x
  3. Step 3: Cross multiply
    310,713.20x = 466,415.40 × 170,745.20
  4. Step 4: Simplify right side
    310,713.20x = 79,638,190,756.08
  5. Step 5: Solve for x
    x = 79,638,190,756.08/310,713.20
  6. Step 6: Final answer
    x = 256,307.72

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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.