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Finding the Fourth Proportional to 351,416.65, 484,952.78 and 190,271.20

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Solution

The fourth proportional to 351,416.65, 484,952.78 and 190,271.20 is: 262,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,416.65 : 484,952.78 = 190,271.20 : x
  2. Step 2: Convert to fraction form
    351,416.65/484,952.78 = 190,271.20/x
  3. Step 3: Cross multiply
    351,416.65x = 484,952.78 × 190,271.20
  4. Step 4: Simplify right side
    351,416.65x = 92,272,546,657.23
  5. Step 5: Solve for x
    x = 92,272,546,657.23/351,416.65
  6. Step 6: Final answer
    x = 262,573.07

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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.